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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
According to option (d) the electric field due to P and S due to Q and T add to zero. While due to U and R will be added up. Hence, the correct option is (D).
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