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A charged particle q is placed at the ce...

A charged particle q is placed at the centre O of cube of length L(A B C D E F G H). Another same charge q is placed at a distance L from O. Then the electric flux through ABCD is

A

(a) `q//4pi in_0L`

B

(b) zero

C

(c) `q//2pi in_0L`

D

(d) `q//3pi in_0L`

Text Solution

Verified by Experts

The correct Answer is:
B
Both the charges are identical and placed symmetrically about ABCD. The flux crossing ABCD due to each charge is `1/6[q/in_0]` but in opposite directions. Therefore the resultant is zero.
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