Energy and Power

Q1: How many watt-hours represent 65 W used for 18 h?

A 11.7 Wh

B 1,170 Wh

C 11,700 Wh

D 117,000 Wh

ANS:B - 1,170 Wh

Power = 65 watts.
Time of period = 18 hours.
wh = power * time.
wh = 65 * 18 = 1170wh.



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