Q.

The electric field at a point on the axis of an electric dipole at a distance r is  E1  and at a distance 2r on the equatorial plane is  E2. If E1=nE2 then n= 

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answer is 16.

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Detailed Solution

E¯1=2KP¯r3&E¯2=KP¯(2r)3

E¯1=16E¯2

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