What must be the distance between two equal and opposite point charges (say +q and −q) for the electrostatic force between them to have a magnitude of 16N?
A
4√kgmetre
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B
q4√kmetre
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C
4kqmeter
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D
4kqmetre
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Solution
The correct option is Bq4√kmetre Electrostatic force between two equal and opposite charges is 16N. F=kq(−q)r2