Question

100kJ of energy flow in 1 minutes and 40 second in an electric devices of resistance 40 ohm. calculate the potential difference ​

Answer 1

Answer:

200volts.

Explanation:

W=QV=ItV

W=I^2Rt=V^2 t/R

W=100000J

V=?

t=1min40sec=100sec

R=40ohm

hence W=(V^2) t/R

100000=(V^2)*100/40

by simplifying it we get V=200volts