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Four charges are arranged at the corners...

Four charges are arranged at the corners of a square ABCD as shown in the figure. The force on the charge kept at the centre O will be:

A

Zero

B

along the diagonal AC

C

along the diagonal BD

D

perpendicular to side AB

Text Solution

Verified by Experts

The correct Answer is:
C
Magnitude as well as polarities of charges at points A and C are same. Therefore forces at O, due to these charges cancel each other. Moreover, polarities of the charges at B and D are opposite, therefore force on charge kept at the centre is along the diagonal BD.
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