An immersion rod used for heating water is rated as 1.1 kW at 220v it is connected to a supply of 220v for 30 minutes. calculated amount of heat generated by immersion rod?
I = P/V
= (1.1 * 1000 )/220
=5 A
R = V/ I
= 220/5
= 44 ohm
H= I2RT
= 5*5 * 44 *30/60
= 550 Joules
= (1.1 * 1000 )/220
=5 A
R = V/ I
= 220/5
= 44 ohm
H= I2RT
= 5*5 * 44 *30/60
= 550 Joules