Question on: WAEC Physics - 1993
A household refrigerator consumes electrical energy at the rate of 200 W. lf electricity costs 5 k per kWh, calculate the cost of operating the appliance for 30 days.
A
N7.20
B
N12.00
C
N30.00
D
N33.33
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Correct Option: A
E = 200 x 30 x 24 Wh = 144000; Wh = 144KWh
Cost 144 x 5k = N7.20
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