Question

Battery of 10 volt carries 20,000 c of charge through a resistance of 20 ω. the work done in 10 seconds is *

Answer 1

Explanation:

volt= 10

charge =20,000 coupon

resistence=20 ohm

time is = 10seonds

then work done in 10 seconds is =vit

10×20000×10

=2000000 joules/sec

and 2000000÷ 1000= 2000 KW{1kw =1000 joules/sec}