Question

36000 joule heat energy is to be produced in an electric heater of resistance 1000 ohms through which electric current is passed for 5 minutes calculate the current passing through heater​

Answer 1

Explanation:

we know that

W= I^ 2 ×T × R

36000 = I ^2 × 300 × 1000

I^2 = 0.12

I = Root of 0.12