Multiple Choice
A heater uses 20 A when used in a 110-V line. If electric power costs 10 cents per kilowatt hour, the cost of running the heater for 10 hours is
A) $5.50.
B) $2.20.
C) $0.55.
D) $0.22.
E) none of these
Correct Answer:
Verified
Correct Answer:
Verified
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