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19. Electric Potential And Capacitance question bank (Physics)

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Q1.

$n$ small drops of the same size are charged to $V$ volt each. If they coalesce to form a single large drop,then its potential will be:

(A)

$Vn^{1/3}$

(B)

$Vn^{2/3}$

(C)

$V \cdot n$

(D)

$Vn^{-1}$

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Q2.

$A$ hollow metal sphere has a radius $r$. The potential difference between a point on its surface and a point at a distance $3r$ from its center is $V$. The electric intensity at the distance $3r$ from the center of the sphere will be

(A)

$\frac{V}{3r}$

(B)

$3Vr$

(C)

$\frac{V}{r}$

(D)

$\frac{V}{6r}$

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