When 1000 w bulb is on for 1 hour, how many units of energy is consumed
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energy = power*time
given power = 1000 watt , in kilowatt = 1000/1000
= 1 kw
time = 1h
energy = 1*1
= 1 kwh
energy consumed in one kilo watt hour is 3.6 * 10⁶ joules
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