Find the current through a person and identify the likely effect on her if she touches a 120 V ACsource for the scenarios stated below. Use the table below to identify the effects of current on thehuman body.(a) If she is standing on a rubber mat and offers a total resistance of 300 km;/=mAO The current will have no effect on her body.O The current will have an effect on her body.(b) If she is standing barefoot on wet grass and has a resistance of only 4600 2.1=mAO The current will have no effect on her body.O The current will have an effect on her body.Current(mA)1510-2050100-300+3006000 (6A)EffectThreshold of sensationMaximum harmless currentOnset of sustained muscular contraction; cannot let go for duration of shock; contraction of chest muscles maystop breathing during shockOnset of painVentricular fibrillation possible; often fatalOnset of burns depending on concentration of currentOnset of sustained ventricular contraction and respiratory paralysis; both cease when shock ends; heartbeat mayreturn to normal; used to defibrillate the heartTable 20.3 Effects of Electrical Shock as a Function of Current²

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Find the current through a person and identify the likely effect on her if she touches a 120 V AC source for the scenarios stated below. Use the table below to identify the effects of current on the human body. (a) If she is standing on a rubber mat and offers a total resistance of 300 ks; 1 = ✔MA O The current will have no effect on her body. O The current will have an effect on her body. (b) If she is standing barefoot on wet grass and has a resistance of only 4600 £2.

Find the current through a person and identify the likely effect on her if she touches a 120 V AC source for the scenarios stated below. Use the table below to identify the effects of current on the human body. (a) If she is standing on a rubber mat and offers a total resistance of 300 ks; 1 = ✔MA O The current will have no effect on her body. O The current will have an effect on her body. (b) If she is standing barefoot on wet grass and has a resistance of only 4600 £2.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

100%

Find the current through a person and identify the likely effect on her if she touches a 120 V AC
source for the scenarios stated below. Use the table below to identify the effects of current on the
human body.
(a) If she is standing on a rubber mat and offers a total resistance of 300 km;
/=
mA
O The current will have no effect on her body.
O The current will have an effect on her body.
(b) If she is standing barefoot on wet grass and has a resistance of only 4600 2.
1=
mA
O The current will have no effect on her body.
O The current will have an effect on her body.
Current
(mA)
1
5
10-20
50
100-
300+
300
6000 (6
A)
Effect
Threshold of sensation
Maximum harmless current
Onset of sustained muscular contraction; cannot let go for duration of shock; contraction of chest muscles may
stop breathing during shock
Onset of pain
Ventricular fibrillation possible; often fatal
Onset of burns depending on concentration of current
Onset of sustained ventricular contraction and respiratory paralysis; both cease when shock ends; heartbeat may
return to normal; used to defibrillate the heart
Table 20.3 Effects of Electrical Shock as a Function of Current²

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