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Subjects
Science CBSE
Class 9
Work and energy
Textbook questions
10.
Exercises X
Exercise condition:
3
m.
An electric heater is rated 1500 W. How much energy does it use in 10 hours?
The formula to calculate the energy consumed by an electric heater is,
\(Energy\ consumed\ =\ \frac{Power}{Time\ taken}\)
\(Energy\ consumed\ =\ Power \times Time\ taken\)
Substitute the values,
Energy consumed by the heater
\(=\)
\(kWh\)
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