The electric potential difference of a 125 F capacitor is measured across the terminals of the capacitor and found to be 9.0 V. The potential energy of the capacitor, rounded to two significant figures, is

Question

Jaxon Harrison

Physics

23 February, 04:04

The electric potential difference of a 125 F capacitor is measured across the terminals of the capacitor and found to be 9.0 V. The potential energy of the capacitor, rounded to two significant figures, is

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Answers (1)

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Jasmin Callahan · Answer 1

E=1/2CV^2

where E is potential energy, C is capacitance and V is the voltage.

E=1/2*125*9^2

E=1/2*125*81

E=5062.5

E=5100J to 2 significant figures.