Equipotential surfaces

Options

A. are closer in regions of large electric fields compared to regions of lower electric fields
B. will be more crowded near sharp edges of a conductor
C. will always be equally spaced
D. both (a) and (b) are correct

Answer

D

Explanation

Electric field,`E=-"dV"/"dr" "or" dr prop 1/E`
i.e., equipotential surfaces are closer in regions of large electric fields compared to regions of lower electric field. At sharp edges of a conductor, charge density is more . Therefore electric field is stronger. Hence equipotential surfaces are more crowded.