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Assertion: Three equal charges are situated on a circle of radius r such that they form an equilateral triangle, then the electric field intensity at the centre is zero. Reason:The force on unit positive charge at the centroid of an equilateral triangle due to the three equal charges at the three vertices are represented by the three sides of a triangle taken in the same order. (Therefore, electric field intensity at centre is zero.) |
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Answer» Both ASSERTION and REASON are true and Reason is the correct explanation of Assertion |
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