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Q.

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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a

2F

b

F4

c

F2

d

F

answer is C.

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Detailed Solution

F=Eq=σ2ε0q, independent of distance

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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.