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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. Force on the positive charge kept at the centre O is:

A

along the diagonal AC

B

along the diagonal BD

C

perpendicular to side AB

D

zero Question

Text Solution

Verified by Experts

The correct Answer is:
a
Magnitude and polarity of charges at point B and D are same. Thus, force at O due to these charges cancel each other. Polarities of charges at A and C are opposite, therefore force on charge kept at the centre O is along the diagonal AC.
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