What will be the energy consumed in 3 hours if an electric heater is rated at 1500 watt?

4.5 kWh

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3 kWh

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2 kWh

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1.5 kWh

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Solution

The correct option is A
4.5 kWh

As Electrical energy = Power $\times$ Time

Power = 1500 Watt = 1.5 kW

Time = 3 hours

Electrical Energy = 1.5 $\times$ 3 = 4.5 kWh

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