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The Mechanical Equivalent of Heat Is 1 Cal = 4

Question 12

Multiple Choice

The mechanical equivalent of heat is 1 cal = 4.18 J. A heating coil, connected to a 120-V source, develops 60,000 calories in 10 minutes. The current in the coil is:


A) 0.83 A
B) 2 A
C) 3.5 A
D) 20 A
E) 50 A

Correct Answer:

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