A potential difference of 6V is used to produce a current of 5A for 200s through a heating coil. The heat produced is 

Jamb 1978

A potential difference of 6V is used to produce a current of 5A for 200s through a heating coil. The heat produced is 

A. 4800 cal 

B. 6000 cal 

C. 2400 J 

D. 240 kcal 

E. 6000J

ANSWER: Option E

EXPLANATION: Just apply the equation below;

heat produced = current × voltage × time(s)

Heat produced = IVt

Time in seconds

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