Question

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

Answer 1

Amount of heat(energy) produced is given by,

H = I2R t

Where, I = current passing through the wire = ?

R = resistance of wire =1000 ohm

t = time interval for current flow = 5 minutes = 300s.