How many joules are there in one kilowatt hour?

35 \times 10^{6}

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3.5 \times 10^{6}

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36 \times 10^{6}

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3.6 \times 10^{6}

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Solution

The correct option is D $3.6 \times 10^{6}$ J
As, $1 k W = 1000 W; 1 h r = 3600 s$
$1 k W h = 1000 W h = 3600000 = 3.6 \times 10^{6} W s = 3.6 \times 10^{6} J$

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How many joules are there in one kilowatt hour?

The correct option is D 3.6×106 JAs, 1kW=1000W;1hr=3600s1kWh=1000Wh=3600000=3.6×106Ws=3.6×106J

The correct option is D $3.6 \times 10^{6}$ J
As, $1 k W = 1000 W; 1 h r = 3600 s$
$1 k W h = 1000 W h = 3600000 = 3.6 \times 10^{6} W s = 3.6 \times 10^{6} J$