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JAMB Physics 2014 Paper

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Question : 29

Total: 41

What charge is stored in a 0.1F capacitor when a 10V supply is connected across it?

1C
5C
4C
2C

Solution:

Concept:

The charge stored in a capacitor is the product of its capacitance and the voltage applied across it.

Explanation:

Use the formula

Q = CV

.

Here,

C = 0.1 \, \mathrm{F}

and

V = 10 \, \mathrm{V}

.

So

Q = 0.1 \times 10 = 1 \, \mathrm{C}

.

Therefore, the charge stored is

1 \, \mathrm{C}

, which corresponds to option A.

Answer:

1 \, \mathrm{C}

(Option A)

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