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A point charge ‘q’ when placed at a distance ‘r’ from a large non-conducting sheet of charge density $σ$ , experiences a force F. If the charge now is placed at a distance r/2 then force experienced by it is.

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$\frac{F}{4}$

$\frac{F}{2}$

answer is C.

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Detailed Solution

$F = Eq = \frac{σ}{2 ε_{0}} q$ , independent of distance

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