Q. 144.5( 126 Votes )

# An electric heater is rated 1500 W. How much energy does it use in 10 hours?

Answer :

Given,

Power, P = 1500 W

= KW

= 1.5 kW

Time, t = 10 h

We know that,

Power =

1.5 =

Energy used = 1.5 × 10

= 15 kWh

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