A defibrillator is used by emergency medical staff to shock the heart of an acci

Question

A defibrillator is used by emergency medical staff to shock the heart of an accident victim by applying a 10,000 V. potential difference across the victims chest. If the defibrillator has an internal resistance of 10 and the victim's heart has a resistance of 300 what is the current that passes through the victim's heart at the moment the defribrillator is discharge and if the defibrillator delivers this current over a 10 ms time interval, how many electrons pass through the heart during the process?

Explanation / Answer

V = 10,000 V, r = 10 , R = 300 , t = 10 ms

current I = V/(r + R) = 32.26 A

charge q = It = 0.3226 C

number of electron = q/e = 2.02*1018

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