Electrical 44931

A current of 20 A passes through the heating spiral of the electric fireplace with a resistance of 10Ω for 2.5 hours. Determine the power input of the fireplace and the consumed electrical energy

Correct answer:

P =  4000 W
W =  10000 Wh

Step-by-step explanation:

R=10 Ω I=20 A t=2.5 h  P=R I2=10 202=4000 W
W=P t=4000 2.5=10000 Wh

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