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    Electric field at a point due to electric dipole

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    An electric dipole is constructed out of two point charges of equal magnitude q and opposite signs, separated by a distance d, as shown in the attached diagram. Find the electric field at the point P. The two charges are each a distance r from point P.

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    Solution Preview

    This is (P point) a equatorial position of the dipole. The electric field due to this system of dipole at point P is calculated as follows:

    Electric field at point P due to +ve charge:
    E+ = K*q/r^2 (along ...

    Solution Summary

    Solution proceeds with the computation of electric fields at point P due to positive and negative charges.