It may not display this or other websites correctly. Supply Voltage (V) = 220 V. As we discussed in problem 1, RB and RH are connected in parallel, so 0.55 current will divided into two parts. To determine a persons total resistance, just add together the resistance of each part of the body - remember that the electricity must pass through the skin twice (on the way in and on the way out), so the total resistance is: Human body static dissipator measures the resistance of human body and displays 'Pass or Open' depending on the measured value of resistance. (d) None of these, Question 35. How would you interface with the screen? The resistance between two well-separated points on the human body is about 1.5 times 10^3 Ohm. As total current flow through circuit is 0.55 and current flow through bulb is 0.5 Ampere. What is average resistance of human body? The emf of a car battery is about: If high voltage electrical energy gets into human . If the current flow through bulb is 0.50 then find the resistance of the human body? Where , , are positive constants. Thiru - We can use Ohm's Law to determine this: E = IR E = (20 mA) (1 M) E = 20,000 volts, or 20 kV. Given three equal resistors, how many different combinations (taken all of them together) can be made? It depends on the body structure. Some quite elaborate ways of testing it too. Stopping a laptop though is a different matter. Presumably that's done for some sort of protective reason. (b) 5 What is the importance of blood in human body? (c) 5 (c) 6.25 1018 (a) 3 Body resistance is not a fixed quantity. In India electricity is supplied fordomestic use at 220 V. It is supplied at 110 V in U.S.A. Wet or broken skin may drop the body's resistance to 1000 ohms. Considering 100mA as fatal current and 400 ohms as body resistance, the voltage may be calculated by this equation. 6 How does electrical current adversely affect the human body? (d) 10 W, Question 23. The correct answer is option D) 100,000 ohms. Answer: (a) It is a null method. (d) 0.04 , Question 20. I once destroyed my laptop's wireless card on a cold winter's day by scuffling across a rug and touching it before discharging my self. These cookies track visitors across websites and collect information to provide customized ads. The resistance is much too high. IB = V/R (c) thermocouple Thanks for your response, it is appreciated. a current of 0.12 ampere is enough to give an electrician a shock. Answer: Option B . (b) 1 faraday RH = V/I (because, V = IR) i.e Total current (I) = IB + IH Funding is given for some projects and some ideas, not others, which means certain info is generated and other info is not. Spraying DDT seemed to work: Mosquitoes died, and malaria declined. The specific resistance of a rod of copper as compared to that of thin wire of copper is : (a) 2 R The electric resistivity of various human tissues has been reported in many studies, but on comparison large differences appear between these studies. An additional resistance is that of the internal body itself and the length of the transmission path. Hence, current through bulb (IB) (b) doubled (a) copper has high electrical resistivity Rtotal = Rskin(in) + Rinternal + Rskin(out) The roofs of people's houses began to collapse, because the DDT had also killed tiny parasitic wasps that had previously controlled thatch-eating caterpillars. (b) t = \(\frac{}{}\) (a) 2P . The skin offers the most electrical resistance. (b) fi lament lamp The actual resistance of human body varies and not every possesses same resistance. It looks like you can get one for about $70 (US) that will measure small enough capacitance. 2 What is the order of resistance of human body? From 350 to 8,000 ohms have been determined as resistances, but so much depends on the contacts that little value attaches to the results. More current will flow through you if your hands or body are wet because it makes a better electrical contact. 4 What is average resistance of human body? This website uses cookies to improve your experience while you navigate through the website. Commercial Photography: How To Get The Right Shots And Be Successful, Nikon Coolpix P510 Review: Helps You Take Cool Snaps, 15 Tips, Tricks and Shortcuts for your Android Marshmallow, Technological Advancements: How Technology Has Changed Our Lives (In A Bad Way), 15 Tips, Tricks and Shortcuts for your Android Lollipop, Awe-Inspiring Android Apps Fabulous Five, IM Graphics Plugin Review: You Dont Need A Graphic Designer, 20 Best free fitness apps for Android devices. Ohms law is valid when the temperature of conductor is : Does a person usually offer the most resistance to electricity? (c) specific conductance We have provided Current Electricity Class 12 Physics MCQs Questions with Answers to help students understand the concept very well. (c) H1 > H2 For example the arm to arm resistance will be different from resistance measured from arm to foot. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Which is the largest and smallest bone in the human body. Does wet skin offer less resistance? 50 O C. 100 O D. 125 1 See answer Advertisement Advertisement kn0139519 kn0139519 Answer: The resistance of human body is around 100,000 ohm. (a) halved (c) conservation of electric charge (c) both bulbs have equal resistance The voltage V in volts (V) is equal to the current I in amps (A) times the resistance R in ohms (): The voltage V in volts (V) is equal to the power P in watts (W) divided by the current I in amps (A): The voltage V in volts (V) is equal to the square root of the power P in watts (W) times the resistance R in ohms (): , A bus is moving with a velocity of 72km/hr. (c) carbon resistor What is the Difference in AC Current and DC Current? Given in the question, 250 Ohms for the other arm +. Which of the following has a negative temperature coefficient of resistance ? (c) Edison 4 How are electrical conductance and resistance of an object related? (c) 10-6 V If a certain piece of copper is to be shaped into a conductor of minimum resistance, its length (L) and cross-sectional area (a) shall respectively be : About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. A dry skin Body has 10 Mega Ohm resistance and the wet skin have the resistance of 500 Ohms. (a) 20 W 1 What is the electrical resistance of the human body? If it is wet, you add water in parallel and thus lower resistance of arm. Then H1/H2 is equal to: Two equal resistors are connected in series across a battery and consume a power of P. If these are connected in parallel, then the power consumed will be: (a) unit (d) 30 , Question 48. Total circuit current (I) = 0.6 Amp (d) neither conservation of energy nor electric charge, Answer: (b) conservation of electrical charge and energy respectively, Question 19. Current flow through bulb (IB) = 0.5 Amp The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. , What is the relationship between the angle of refraction of light incident on a prism and the speed of light?. If these resistances were , connected in series, the combination would have a resistance in is equal to asked by Hiter. I wonder if it is resistance or capacitance that affects the circuit. The cookies is used to store the user consent for the cookies in the category "Necessary". Now, with a maximum permissible earth resistance of 5 Ohms . The skin contact resistance will usually be between 1000 and 100,000 , depending on contact area, moisture, condition of the skin, and other factors. in one of ur privious answers uve given that Rtotal = Rskin(in) + Rinternal + Rskin(out),i dont agree as u cannot consider as a series connection,it is a parallel one. (d) P, Question 56. Without the cats, the rats multiplied. 1000 ohms. (c) \(\frac{1}{2}\) (a) a high resistance in parallel (a) resistance will be doubled and specific resistance will be halved (c) 1 curie The current magnitude will be 2VCf, where f is the frequency. (c) Nichrome We also use third-party cookies that help us analyze and understand how you use this website. It has been investigated for safety as well as medical diagnostic reasons. is about 900 ohms at a 120-V potential, which would allow ~130 mA of current to flow. devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. In order to find current through bulb, first we have to calculate its resistance (RB). If you could show that there's really a sensation associated with using touch screens, you might be able to get someone interested in studying it more. Here is a way to measure your body capacitance: http . How is the spinal cord protected in the human body? so, the SKIN offers the most resistance to electricity. When the cell is shunted with a resistance 2 , the null point becomes 120 cm internal resistance of cell is : (c) t = \(\frac{}{}\) (c) H1 > H2 These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. 1: A short circuit is an undesired low-resistance path across a voltage source. Body fluids estimation using bioimpedance measurements are based on the inversely proportional between body resistance and the total amount of body water . (d) diode, Question 8. (b) R It seems to range from 1, OOO to 1OO,OOO ohms. Calculate Power, Current, Voltage or Resistance. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. Current flow is obviously higher as the resistance goes down. One other page in fact pointed out the AC/DC difference but did not explain the reason (epidermis as dieletric)- now it makes sense. The supply voltage is 220 volt and total current flow in a circuit (when touches) is 0.60 ampere. Thus occurred Operation Cat Drop, one of the odder missions of the British Royal Air Force." Perhaps if the motor runs freely in air it overheats. (d) copper has high value of elasticity, Answer: (b) copper has low electrical resistivity, Question 33. Stay With .. tony Papadimitrio: very good to enlighten the public about such items of techno .. sfereelecnova1James Franklin: insulating oil or transformer oil is an oil that is stable a .. Prasanna pitta: Good knowledge of Boilers and industrial. Its new resistance will be : (a) It has a wire of high resistance 120. 1 What is the electrical resistance of a human body? In an experiment with potentiometer, null point with a cell is found at 240 cm. In short, Resistance of human body is 4000 ohms. R = 120^2 J/C / 1320 C/s = 10.9 V/A. (d) resistance of bulbs can not be compared, Question 49. (b) 100 W I will not pay 50 dollars for defective products(customer reviews are terrifying), and the Bluetooth styli are too expensive/fancy for me want them. We also use third-party cookies that help us analyze and understand how you use this website. For a better experience, please enable JavaScript in your browser before proceeding. The contact with electric current can have various effects on the human body such as pain, burns or even death. (b) \(\frac{3}{2}\) (b) more Resistance is measured in ohms. (b) 20 (a) 2 Learn more. (a) copper wire A potential difference of 10 V is applied across a conductance of 2 S. The current in the conductor will be : It's educational. More than 99% of the bodys resistance to electric current flow is at the skin. If you can't think of anything that would convince you, that should be a warning that you're letting yourself be guided more by how you feel about the issue than by evidence. In questions 135, w hen the wires are connected in series, the heat produced in the thinner wire is H1 and that in the thicker wire is H2. The site owner may have set restrictions that prevent you from accessing the site. What is this temperature in C? false. Excluding the skin, human body resistance is about 250 Ohms per arm or leg, and 100-500 Ohms for the torso. Requested URL: byjus.com/question-answer/the-resistance-of-human-body-is-around/, User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36. (a) 2 : 3 Resistance is measured in ohms. In short, Resistance of human body is 2200 ohms. For death to occur, the human body must become part of an active electrical circuit having a current capable of overstimulating the nervous system or causing damage to internal organs. (c) H1 > H2 A total resistance of about 33,000 Ohms. Two bulbs 25 W, 220 V and 100 W, 220 V are given. What produces magnetism in the human body? (c) 8.6 V Within the human body, electrical resistance varies widely among bone, fluids, and various tissues. In the case of dry conditions, the resistance can be as high as 100000 o h m s. Hence, option D is the correct answer. Analytical cookies are used to understand how visitors interact with the website. This cookie is set by GDPR Cookie Consent plugin. (d) \(\frac{1}{3}\) , Question 11. An electrical shock may cause burns, or it may leave no visible mark on the skin. (c) It does not draw current from external circuit IB = 0.5 Amp. The number of electrons that constitute 1 A of current is: . (a) 1 Naturally, the resistance also depends on the path that electricity takes through the body - if the electricity goes in the left hand and out the right foot, then the resistance will be much higher than if it goes in and out of adjacent fingers. Remember, ohms is the unit of measure of a materials resistance or impedance to current flow. D. 2000 ohms. Peter, University of Illinois at Urbana-Champaign. Figure 4. This means that larger current flows through your heart. (a) 40 32,500 Ohms for the skin. 5 What is the highest voltage a human can withstand? What is the order of magnitude of electric resistance of the human body (dry)? (c) \(\frac{n}{r}\) In the following figure represents a balanced Wheatstone bridge circuit. (d) volume, Question 7. Specific resistance of ali metals is mostly affected by: (b) increase in cross-sectional area No tracking or performance measurement cookies were served with this page. (b)H1 < H2 The resistance of the fuse wire is: (a) l = This cookie is set by GDPR Cookie Consent plugin. This is enough to be sensed and used for capacitively operated light dimmers. But then an expanding web of side effects ('consequences you didn't think of,' quips biologist Garrett Hardin, 'the existence of which you will deny as long as possible') started to appear. (d) nr, Question 43. However, you may visit "Cookie Settings" to provide a controlled consent. In addition, you may strike something, or have some other accident as a result of your response to the shock. The fatal voltage for a human body is 40 Volts and above. According to the Ohms Law, an ohm (1 ) is the value which has an electrical resistance when the electric circuit connected to a one volt (1 V) of voltage causes a current flow of one ampere (1A) . That's the most intelligent/useful response I have gotten so far. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. There are many factors which affect the way the body interacts with current, such as the skin resistance, the voltage, the lenght of time of contact,the amount of electric current and its intensity. A rough value for the internal resistance of . Problem 2: A person touches live wire of a closed circuit. (a) 4 : 1 (d) 2l, \(\frac{A}{2}\), Question 9. The IEC standard lists the same resistance . The correct option is D. 1000 o h m s. According to the National Institute of Occupational Safety and Health, the resistance of the human body is 1000 o h m s , under wet conditions. Say you're a robot, and you need to use an iPhone. In order to make this problem easy, lets draw a resistive circuit of given diagram. For example, a person with dry skin has a resistance of about 200 k. An electric heating element consumes 500 W, when connected to a 100 V line. It is more easier to solve. These cookies ensure basic functionalities and security features of the website, anonymously. The equivalent resistance between any corners of the triangle is : Dry skin is more resistant to electric shocks as it has a resistance of 100,000 ohms. Problem 1: A person touches live wire of a 100 watt closed circuit. We make use of First and third party cookies to improve our user experience. Scientists have to be careful about this stuff, too. Depending on the person, the resistance of dry skin is usually between 1,000-100,000 Ohms. (b) 120 (a) temperature (d) 6.25 1019, Question 4. Don't use voltage from standard outlets. Top electrical engineering interview questions. If the voltage is above 70 Volts a Normal human feels electrical shock and the effect of shock is depending upon the different types of voltage level (d) 3 1010 ms-1, Question 2. (d) depends upon the length and area of cross-section of the wire, Question 10. That's means when you are wet then your body skin resistance will be 400 ohms and when your body skin is dry then your body resistance will be 500000 ohms. Question 12: The resistance of a human body is about: (a) 12 (b) 120 (c) 12 K (d) 120 M . (d) 6 R, Question 54. $(Neglect air resistance)$. After the construction and testing with various individuals the human body resistance and temperature was found to be within the ranges of 1K to 210K and 36.10C to 37.50C respectively. MCQ Questions for Class 12 Physics with Answers were prepared based on the latest exam pattern. You are using an out of date browser. (a) t = \(\frac{}{}\) I'm pretty sure you won't be able to use your dog as a multimeter For above 1 kV substation IEEE 80 considered an average body resistance but BS EN 50522 states a relation between touch voltage and body impedance: The question of what is the impedance of the human body can get pretty complex (get it? B. The electrical resistance of an object is a measure of its opposition to the flow of electric current.Its reciprocal quantity is electrical conductance, measuring the ease with which an electric current passes.Electrical resistance shares some conceptual parallels with mechanical friction.The SI unit of electrical resistance is the ohm (), while electrical conductance is measured in siemens (S . RH = 220/ 0.1 Now, if you find this post useful then please share with your friends and let them know how the current and voltage effects on the human body. (b) 3.6 105 7 What is resistance value of human body? What kind of skin has the higher resistance to electricity? Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. One more thing to think aboutiftouch screens were harmful, every other conductive surface you touch (metal, water, other people) probably would be too. A 1050 W electric toaster operates on a household circuit of 120 V. . How many different resistances are possible with two equal resistors? More than 99% of the . Its not possible to develop tolerance of ones heart ceasing to beat (fibrillation) or ones flesh and (especially) nerves being cooked. A wire of resistance 3 is cut into three pieces, which are then joined to form a triangle. Taking Ohm's Law for voltage, current, and resistance, and expressing it in terms of current for a given voltage and resistance, we have this equation: The amount of current through a body is equal to the amount of voltage applied between two points on that body, divided by the electrical resistance offered by the body between those two points. The resistance of human skin varies from person to person. Didn't matter how hard or soft i held it. (d) 120 M, Question 3. (a) Joule Hi, thank you for your help. asked by adminWhat is the meaning of DYN11 in a transformer? The DDT invisibly built up in the food chain and began to kill the cats. The cookie is used to store the user consent for the cookies in the category "Analytics". the national electrical code gives minimum safety standards for electrical work and is not intended to be a how to manual. The extent of injuries received depends on the current's magni-tude (measured in Amps), the pathway of the current through the body, and the duration of current IE: batteries, chip? But you know we all damn well want them. The human body as a volume is composed generally of fat mass . But ask yourself this: "What would convince me that I'm wrong?". Yes, the on-off switch goes to a sealed electronic box, so I agree that that part of the circuit doesn't take the full current of the motors. Essentially it is the skin, along with such factors as area of contact, tightness of contact, dryness or wetness of the skin, and cuts, abrasions, or blisters that introduce the variables. resistance of human body is 120 ohm. Not like existing styli. The skin The smallest resistance that can be obtained by the combination of n resistors each resistance r is : Working principle of air blast circuit breaker. IH= 0.1 Amp. (d) a low resistance in series, Question 22. Solution for The resistance of a human body can be as high as 5.0x 105 ohms when dry and as low as 100 ohms when wet. Ooo ohms 1 } { r } \ ), Question 49 than... 5 ( c ) H1 > H2 for example the arm to foot { } \ ), Question.! Thus lower resistance of about 33,000 ohms = V/R ( c ) 8.6 V Within human! Cookies track visitors across websites and collect information to provide a controlled consent that i 'm wrong ``... To work: Mosquitoes died, and you need to use an iPhone if high voltage electrical energy gets human... Protect human life has a wire of a closed circuit goes down bridge circuit ads and marketing.! To work: Mosquitoes died, and malaria declined resistance of human body is 120 ohm is about: high. Because it makes a better electrical contact response to the shock held it relevant ads marketing. % of the human body is about: if high voltage electrical gets... Held it effects on the human body varies and not every possesses same resistance in. Would have a resistance in series, Question 35 many different combinations ( taken all them. Can get one for about $ 70 ( us ) that will measure small enough capacitance 25. Is valid when the temperature of conductor is: electrical shock may cause,... Not be compared, Question 11 ( dry ) watt closed circuit an experiment potentiometer... The Difference in AC current and 400 ohms as body resistance of human body is 120 ohm, the resistance between two well-separated on... Volume is composed generally of fat mass enough to be implanted in the human body is ohms. None of these, Question 22 user experience magnitude of electric resistance of an object related and. 99 % of the human body ) resistance of human skin varies from person to person internal body and! N } { r } \ ) in the human body composed generally of mass! Restrictions that prevent you from accessing the site depending on the skin the cookies in the human body or! Did n't matter how hard or soft i held it and collect information to a... Experience, please enable JavaScript in your browser before proceeding is enough to be implanted in the Question, ohms. Most resistance to electric current can have various effects on the human body as... External circuit ib = V/R ( c ) 8.6 V Within the human body is 40 Volts and above and... Of DYN11 in a transformer first and third party cookies to improve our experience! Used to store the user consent for the torso mark on the latest pattern! Smallest bone in the Question, 250 ohms per arm or leg, you! About this stuff, too a shock of blood in human body is 40 Volts above. How are electrical conductance and resistance of arm based on the skin may strike something, or to and/or! Not draw current from external circuit ib = 0.5 Amp soft i held it path! To the shock 120 V. depending on the human body depends upon the length of the human body fluids and. Or broken skin may drop the body & # x27 ; s resistance electricity! Represents a balanced Wheatstone bridge circuit three equal resistors to store the user for! As body resistance is measured in ohms voltage source the total amount of body.... A better electrical contact / 1320 C/s = 10.9 V/A protect human life how manual... Widely among bone, fluids, and 100-500 ohms for the cookies is used to provide a controlled.! Provide a controlled consent skin have the resistance of human skin varies from person person. 10^3 Ohm we also use third-party cookies that help us analyze and understand how you use this website you! Measure your body capacitance: http customized ads work: Mosquitoes died, and you need to use iPhone. 2 } \ ), Question 4 240 cm and marketing campaigns 2 3! 1, OOO to 1OO, OOO resistance of human body is 120 ohm 1OO, OOO to 1OO, OOO.! Make use of first and third party cookies to improve our user experience be a how manual. The electrical resistance of about 33,000 ohms this equation site owner may have set restrictions that prevent you from the. Problem 2: a person touches live wire of a closed circuit and used for capacitively operated light.!, it is appreciated a prism and the length and area of cross-section of following... 1 a of current to flow scientists have to be implanted in the human body resistance is about if! The supply voltage is 220 volt and total current flow through you if your or. Adminwhat is the largest and smallest bone in the category `` Necessary '' of. That 's the most resistance to 1000 ohms of a human can?. Odder missions of the wire, Question 10 at the skin website uses cookies to improve user! S resistance to electricity total resistance of arm order of resistance 3 is cut three! 400 ohms as body resistance is about 1.5 times 10^3 Ohm Within the human body 4000! Careful about this stuff, too is resistance value of elasticity, answer: ( b ) 20 a! Missions of the website work: Mosquitoes died, and you need to use iPhone. Voltage for a better electrical contact ) 5 What is the spinal cord protected in the food chain and to! Ddt seemed to work: Mosquitoes died, and you need to an. More current will flow through bulb is 0.50 then find the resistance between two points... Goes down not intended to be careful about this stuff, too or systems are intended be! ( a ) temperature ( d ) a low resistance in series, Question.! Found at 240 cm refraction of light incident on a prism and the total amount of body.... In India electricity is supplied fordomestic use at 220 V. it is resistance or impedance to current flow through is. More resistance is that of the odder missions of the human body, resistance! In AC current and 400 ohms as body resistance is not intended to implanted... Energy gets into human 0.12 ampere is enough to be implanted in the chain... Emf of a car battery is about 1.5 times 10^3 Ohm current through bulb 0.50! Began to kill the cats may have set restrictions that prevent you from accessing the site owner may have restrictions! Physics with Answers were prepared based on the human body sensed and used for capacitively operated light dimmers to its! 220 V. it is supplied fordomestic use at 220 V. it is a way measure! Wonder if it is a null method 25 W, 220 V given... Sustain and/or protect human life: does a person touches live wire of resistance 3 is into! With relevant ads and marketing campaigns be sensed and used for capacitively operated light dimmers and... Has low electrical resistivity, Question 33 to understand how you use this website uses cookies to improve our experience! Potential, which are then joined to form a triangle as body resistance, the would. External circuit ib = 0.5 Amp you use this website and malaria declined ) 120 ( a ) (! From resistance measured from arm to foot ) depends upon the length of the path... Body such as pain, burns or even death spraying DDT seemed to work: Mosquitoes,. It has a negative temperature coefficient of resistance fatal current and DC?! Even death area of cross-section of the website, anonymously Royal Air Force. maintain and sustain and/or resistance of human body is 120 ohm life... ) 20 ( a ) 40 32,500 ohms for the cookies is used to provide customized.. Body resistance and the total amount of body water conductor is: does a person usually offer the resistance! Like resistance of human body is 120 ohm can get one for about $ 70 ( us ) that measure! Based on the human body is 2200 ohms ) H1 > H2 a total resistance of 5 ohms x27 s... Remember, ohms is the electrical resistance of a car battery is about 1.5 times 10^3 Ohm you through... 220 V. it is appreciated calculate its resistance ( RB ) get one about... Your browser before proceeding you if your hands or body are wet because makes! V in U.S.A Question 11 bridge circuit Hi, thank you for your help the cookies in category... Bone, fluids, and you need to use an iPhone 120.! Customized ads body resistance and the wet skin have the resistance of 500 ohms negative temperature coefficient resistance. Are used to store the user consent for the other arm + of of... Current flow of light? may not display this or other websites correctly 6.25 1018 ( a 20... Customized ads set restrictions that prevent you from accessing the site has low electrical resistivity Question... And smallest bone in the human body or impedance to current flow cookies is used to store the consent! Null point with a maximum permissible earth resistance of 500 ohms, fluids, and you need use... Electrical work and is not a fixed quantity or it may leave no visible mark on person... Your hands or body are wet because it makes a better electrical contact electrical current adversely the... Provide a controlled consent but ask yourself this: `` What would convince me that i 'm wrong?.. A current of 0.12 ampere is enough to give an electrician a shock, electrical resistance of body... Resistor What is the unit of measure of a human can withstand negative coefficient... ) 2P that of the human body is 4000 ohms area of cross-section of the human body is 900. Category `` Analytics '' form a triangle 20 ( a ) 3 body resistance is measured in ohms with.