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Potential and Potential Difference

A student wan...

Question

A student wants to increase the capacitance of a parallel-plate capacitor. How can he/she do this ?

A

Using smaller plates

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B

Replacing the dielectric material between the plates with one that has a smaller dielectric constant

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C

Decreasing the voltage between the plates

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D

Increasing the voltage between the plates

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E

Moving the plates closer together

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Solution

The correct option is E Moving the plates closer together
We know that the capacitance, $C = \frac{A ϵ_{0}}{d}$ where A be the area of plate and d be the separation between plates.
Also $C = \frac{Q}{V}$ and the capacitance is proportional to dielectric constant.
From above information we say that only option E will give correct answer.

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Potential and Potential Difference

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