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Electrostatic Potential And Capacitance

Question

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A charge Q is distributed uniformly in a sphere (solid). Then, the electric field at any point r, where, r < R (r is the radius of sphere) varies as:

$r^{\frac{1}{2}}$

r ^-1

r

r ^-2

Solution

C.

r

Electric field intensity at a point inside the sphere

$E = \frac{Q}{4 {πε}_{o} r}$

E ∝ r

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