Question

Calculate the amount of heat generated while transfering 90000c of charge b/w thevtwo terminals of a battery of 40V in 1 hr Also determine the power expended in the process

Answer 1

Here charge transferred Q=90000 C, time t=1 hour = 60*60=3600 s and potential difference V=50 V.        I=Q/t        I=90000/3600        I=25Now V=IR        50=25*R        50/25=R        2=RNow electric  power=I²R                               25*25*2=1250