Knowing electricity through solving the equation :)

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An electric lamp uses energy at a rat of 60W on a 12V supply. How much CHARGE passes through the lamp in 1 minutes ?

You can using this formula to solve this question : P=VI

Power is defined as the RATE OF ELECTRICAL ENERGY DISSIPATED .

Hence , Power = Energy Dissipated / Time = VIt / t

720 12 5 300

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1 solution

Nicole Ling
Jan 27, 2014

P=VI I = 60/12 = 5A thus, the lamp has used 1 minutes so the charge is 5A X 60s = 300 c

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