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Energy and Power - Engineering

Q1:

A half-watt is equal to how many milliwatts?

A 5,000 mW

B 5 mW

C 500 mW

D 50 mW

ANS:C - 500 mW

Half-watt= 0.5W

Then 1W=1000mW
so, 0.5W= 0.5*1000
= 500mW