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Force of attraction between two point charges `Q` and `-Q` separated by `d metre is F_(e )`. When these charges are placed on two identical spheres of radius `R = 0.3 d` whose centres are `d metre` apart , the force of attraction between them isA. greater than `F_(e )`B. equal to `F_(e )`C. less than `F_(e )`D. none of these |
Answer» Correct Answer - 1 Now charges cannot be treated as point charges due to induction , charge is retributed , effective separation decreases , hence force increases. |
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