Question

When a patient’s heart stops beating, a heart defibrillator may be used to start the heart beating again. The defibrillator passes a current of 12 A through the body at 25 V for a time span of 3.0 s. What is the power of the defibrillator?

A.481 W
B.300 W*
C.900 W
D.52 W

Answer 1

P=VI
(Power= current* voltage)
Power= 12*25
Power=300 W

Hope this helps :)