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What is the nature of equipotential surfaces in case of a positive point charge?

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in Physics – Class 12 by (135k points)
What is the nature of equipotential surfaces in case of a positive point charge?

(a) Circular

(b) Spherical

(c) Cubical

(d) Cylindrical

The question was asked in unit test.

This key question is from Equipotential Surfaces topic in section Electrostatic Potential and Capacitance of Physics – Class 12

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Best answer
Correct answer is (b) Spherical

The best I can explain: We know that electric field lines cross the equipotential surfaces perpendicularly. Electric field lines are generated radially from a positive point charge. Therefore, for holding both the conditions, the equipotential surfaces must be spherical.

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