A capacitor is used to store 24 watt hour of energy at 1200 volt.

A Capacitor Is Used To Store 24 Watt Hour Of Physics QuestionA Capacitor Is Used To Store 24 Watt Hour Of Physics Question

A capacitor is used to store 24 watt hour of energy at 1200 volt. What should be the capacitance of the capacitor?

Options

(a) 120 mF
(b) 120 μF
(c) 24 μF
(d) 24 μF

Correct Answer:

120 mF

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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  • U= 24 watt hour= 24×60×60
    V= 1200 volt
    U= 1/2 CV^2
    C = 2U/V×V
    C = 2×24×60×60/1200×1200
    C= 0.12 F
    C= 120×10^-3 F
    C= 120mF

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