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Q.

The electric field due to an electric dipole at a distance r from its centre in axial position is E. If the dipole is rotated through an angle of 90° about "its perpendicular axis, the electric field at the same point will be

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a

E

b

E/4

c

E/2

d

2E

answer is C.

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Detailed Solution

When the dipole is rotated through at an angle of 90° about its perpendicular axis, then given point comes out to be on equator. So, field will become E/2 at the given point.

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