How much energy in KWH is consumed by 600 watt bulb running for 20 hours
We know that
Power
P=EtP=\frac{E}{t}P=tE
Energy
E=PtE=PtE=Pt
E=600×20WHE=600\times20WHE=600×20WH
E=12000WHE=12000WHE=12000WH
E=12KWHE=12KWHE=12KWH
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