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Capacitance question bank (Physics)

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Q1.

The equivalent capacitance between 'P' and 'Q' is [A-area of each plate, d-separation between the plates, $\epsilon_0$ -permittivity of free space]

(A)

$\dfrac{A\epsilon_0}{d}$

(B)

$\dfrac{2A\epsilon_0}{d}$

(C)

$\dfrac{3A\epsilon_0}{d}$

(D)

$\dfrac{4A\epsilon_0}{d}$

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Q2.

In an ideal LC circuit, if the energy stored in the inductor is equal to energy stored in a capacitor, then the magnitude of charge Q stored in capacitor is ( $Q_0$ is the maximum charge)

(A)

$\dfrac{Q_0}{\sqrt{2}}$

(B)

$\dfrac{Q_0}{2}$

(C)

$\sqrt{2}Q_0$

(D)

$Q_0$

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