Question

how much energy consumee is when current 5ampere? flow through an filament of a metre having a resistance 100 ohm! for 2 hrs?

Answer 1

energy consumed = I^2RT

E= 5*5*100*2

E=5000J

Answer 2

We know that,

Power (P) = I²R

Here, I = 5 A, R = 100 Ohms

Therefore, Power = 25*100 = 2500 W

Energy Consumed = Power*Time

= 2500*2 = 5000 J


Hope it Helps!