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Q.

+Q charge is present at the points A, B, C of a triangle having equal limbs. The intensity of electric field at O will be :

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a

14πe0Qr2

b

14πe0Qr

c

Zero

d

14πe0Q2r2

answer is C.

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Detailed Solution

Electric field due each each charge will make same angle with each other  such that N x θ= 3600 hence the resultant electric field is zero.

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