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Question
Draw the equipotential surfaces due to an electric dipole. Locate the points where the potential due to the dipole is zero.
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Solution
Equipotential surface due to electric dipole:
The potential due to the dipole is zero at the line bisecting the dipole length.
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Draw the equipotential surfaces due to an electric dipole.
- The potential at all the points on an equipotential surface is same.
- Equipotential surfaces never intersect each other.
- Work done in moving a charge from one point to other on an equipotential surface is zero.
The work done to move a charge along an equipotential from A to B ______.
- cannot be defined as `- int_A^B E.dl`
- must be defined as `- int_A^B E.dl`
- is zero.
- can have a non-zero value.
What is meant by an equipotential surface?
