Derive an expression for electric potential at a point near a dipole
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Positive and negative point charges of equal magnitude are kept at (0,0,2a) and (0,0,2−a) respectively. ...
A dipole having dipole moment P is placed in front of a solid neutral conducting sphere as shown in figure. ...
The potential at a point P due to an electric dipole is 1.
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The NCERT formula is correct if used with vector notation as the direction of electric dipole moment is from -q(negative charge) to +q(positive charge) and the resultant electric field at any point on the equatorial line is in a direction opposite to the electric dipole moment so negative sign is used.
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