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A charge flow of 20 C passes through a potential difference of 12 V. Calculate the energy transferred.

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Energy transfers

Question

A charge flow of 20 C passes through a potential difference of 12 V. Calculate the energy transferred.

240 J energy transferred

Use E = Q x V. Substituting 20 C and 12 V gives E = 20 x 12 = 240 J, so the energy transferred is 240 J.

Energy transfers in everyday appliances common mistake 1

Giving a vague answer instead of directly addressing: Recall and apply the equation E = Q x V..

Answer by clearly explaining how to recall and apply the equation E = Q x V..

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