WAEC Physics 2018 Theory — Question 23
Question 23 of 27 from the West African Examinations Council (WAEC) Physics 2018 Theory paper, with the correct answer and a full explanation.
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11.(c) A lamp is rated 12V, 6W. Calculate the amount of energy transformed by the lamp in 5 minutes.
Model answer
Energy = Power × time = 6W × (5×60)s = 6×300 = 1800J.
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