A heart defibrillator is used to enable the heart to startbeating if it has stop

Question

A heart defibrillator is used to enable the heart to startbeating if it has stopped. This is done by passing a large currentof 12.0 A through the body at 25.0 V for a very shorttime, usually about 3.00 ms. a)What power does the defibrillator deliver to the body?      P=             W b)How much energy is transferred?          E=        J A heart defibrillator is used to enable the heart to startbeating if it has stopped. This is done by passing a large currentof 12.0 A through the body at 25.0 V for a very shorttime, usually about 3.00 ms. a)What power does the defibrillator deliver to the body?      P=             W b)How much energy is transferred?          E=        J

Explanation / Answer

(a) Power delivered is P = VI                                       = (35.0V)(12.0A) = 420W (b) Energy transferred is E = Pt                                         = 1.26J

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