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Superposition of Electric Fields

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Question

Figure shows the field lines of a point negative charge. In going from B to A, the kinetic energy of a small negative charge will:

A

increase

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B

decrease

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C

remains constant

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D

data insufficient

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Solution

The correct option is C decrease
Due to force of repulsion on the negative charge, velocity decrease and hence the kinetic energy decreases in going from B to A.

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