A torch bulb is rated 5v and 500m A calculate power resistance and energy consumed for 4hours.??

A torch bulb is rated 5v and 500m A calculate power resistance and ene

1.	A torch bulb is rated 5v and 500m A calculate power resistance and energy consumed for 4hours.??
Answer» Potential difference = 5 voltCurrent= 500×10^-3AResistance=V/IR=10 ohmPower =VI=5×500×10^-3=2.5WattsHeat produced= power×timeImplies, 2.5×4×3600=36000Joules