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six charges of equal magnitude, 3 poisti...

six charges of equal magnitude, 3 poistive and 3 negative are to be placed on PQRSTU corners of a regular hexagon, such that field at the centre is double that of what it would have been if only one +ve charge is placed at R. Which of the following arrangement of charge is posisble for P, Q, R, S, T and U respectively.

A

`+, –,+, –,–, +,`

B

`+, –,+, –,+, –,`

C

`+, +,–, +,–, –,`

D

`–, +,+, –,+, –,`

Text Solution

Verified by Experts

The correct Answer is:
D
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