Multiple Choice
A 500-W heater carries a current of 4.0 A.How much does it cost to operate the heater for 30 min if electrical energy costs 6.0 cents per kWh?
A) 1.5 cents
B) 9 cents
C) 6.0 cents
D) 0.042 cents
E) 30 cents
Correct Answer:
Verified
Correct Answer:
Verified
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