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Figures \((a) \)and \((b)\) show the field lines of a positive and negative point charge respectively.
Question: Figures (a) and (b) show the field lines of a positive and negative point charge respectively.Does the kinetic energy of a small negative charge increase or decrease in going from  B  to  A ?
Does the kinetic energy of a small negative charge increase or decrease in going from \(B\)  to \(A\) ?

Answer

Due to force of repulsion on the negative charge, velocity decreases and hence the kinetic energy decreases in going from \(B\)  to \(A\).
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