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MHT CET Physics question

PhysicsElectric Charges and FieldsMHT CET

'F' is the force between the two identical charged particles placed at a distance 'Y' from each other. If the distance between the charges is reduced to half the previous distance then force between them becomes [MHT-CET 2022]

Answer: (B)

Solution

, so halving r multiplies F by 4; F/4 and F/2 would need

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Question ID VK-070709