Question

An electric heater of resistance 8 ohm draws 15C of charge per second. Suppose it happens for a period of 2 hours calculate the amount of heat energy derived by the heater?


spam mat karna dimaag kharab h gussa tum logon ke uppar utar jayega .... shanti se answer do aur chalte bno..​

Answer 1

Explanation:

Rate of generating heat is equal to the power used by the heater.

By Joule's Law of heating,

P=I²R=15²×8=1800 W

Hence, rate of generation of heat is 1800W.

Total amount of heat generated, E=Pt

E=1800×2=3.6 kWh

xXitzSweetMelodyXx