WAEC Physics 2013 Objective — Question 37
Question 37 of 50 from the West African Examinations Council (WAEC) Physics 2013 Objective paper, with the correct answer and a full explanation.
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A potential difference of 12V is applied across the ends of a 6Ω resistor for 10 minutes. Determine the quantity of heat generated.
- A. 720 J
- B. 1200 J
- C. 14400 JCorrect
- D. 43200 J
Explanation
Time = 10 minutes = 600s. Quantity of heat generated = (V²/R)×time = (12²/6)×600 = 24×600 = 14,400 J.
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