1.

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 \[\text{9}0{}^\circ \]about its perpendicular axis, the electric field at the same point will be                     [J & K CET 2005]

A.            E
B.                                      E / 4
C.                 E / 2      
D.                 2E
Answer» D.                 2E


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