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Electric Power

A half kilowa...

Question

A half kilowatt is equal to _______ milliwatts.

A

500000

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B

50000

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C

500

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D

0.5

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Solution

The correct option is A
500000
1 kilowatt (kW) = 1000 watts
or 0.5 kilowatt = 500 watts

1 watt = 1000 milliwatts (mW)
Therefore
0.5 kilowatt = 1000 $\times$ 500 = 500000 mW

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