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Consider a group of charges q₁, q₂, q₃ ... such that Σq ≠ 0. Then equipotentials at a large distance, due to this group are approximately :
Draw equipotential surfaces for an electric dipole.
Two long straight thin wires AB and CD have linear charge densities 10 μC/m and −20 μC/m, respectively. They are kept parallel to each other at a distance 1 m. Find the magnitude and direction of the net electric field at a point midway between them.
Two charges 2 mC and –2 mC are placed at points A and B 6 cm apart.
Which statement is not correct for an equipotential surface?
Assertion (A): Electric field is always normal to equipotential surfaces and along the direction of decreasing order of potential. Reason (R): Negative gradient of electric potential is electric field.
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