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MHT CET 2021 (21 Sep, Shift 1) · Electric Charge & Coulomb's Law

Electric Charge & Coulomb's Law question from MHT CET 2021 (21 Sep, Shift 1)

Q52MHT CET 2021 · 21 SEP · SHIFT 1Easy

Electric Charge & Coulomb's Law

' $F$ ' 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

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Answer: (b)

$F \propto \dfrac{1}{r^2}$ .
$r \to \dfrac{Y}{2} \Rightarrow F' = \dfrac{F}{(1/2)^2} = 4F$
So the answer is (b) $4F$ .

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