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



Did you find an error or inaccuracy? Feel free to write us. Thank you!







You need to know the following knowledge to solve this word math problem:

    Units of physical quantities:

    Themes, topics:

    Grade of the word problem:

    Related math problems and questions: