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Question
What is the geometrical shape of equipotential surfaces due to a single isolated charge?
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Solution
For an isolated charge the equipotential surfaces are co-centric spherical shells and the distance between the shells increases with the decrease in electric field.
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RELATED QUESTIONS
Define an equipotential surface.
The discharging current in the atmosphere due to the small conductivity of air is known to be 1800 A on an average over the globe. Why then does the atmosphere not discharge itself completely in due course and become electrically neutral? In other words, what keeps the atmosphere charged?
What are the forms of energy into which the electrical energy of the atmosphere is dissipated during a lightning?
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The diagrams below show regions of equipotentials.
(i) |
(ii) |
(iii) |
(iv) |
A positive charge is moved from A to B in each diagram.
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Draw equipotential surfaces for (i) an electric dipole and (ii) two identical positive charges placed near each other.
