Q33 of 146 Page 163

How much electric energy in kWh is consumed by an electrical appliance of 1000 watts when it is switched on for 60 minutes?

Power = 1000 watt (1KW);

Time = 60 min = 1 hr


Energy = P × t = 1000 × 1h = 1000 Wh = 1 KWh


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