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There is a re...

Question

There is a repulsive force between two charges when

A

charges are of unlike sign

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B

they have the same number of protons

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C

they have the same number of electrons

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D

charges are of like sign

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Solution

The correct option is D
charges are of like sign

Like charges repel and unlike charges attract. Hence if there is repulsion, it implies that they are like charges.

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