Electric Potential at a Point in Space Due to a Point Charge Q
Four charges,...
Question
Four charges, all of the same magnitude placed at the four corners of a square. At centre of the square, the potential is V and the field is E. By suitable choices of the signs of four charges, which of the following can be obtained?
A
V=0,E=0
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B
V=0,E≠0
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C
V≠0,E=0
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D
V≠0,E≠0
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Solution
The correct options are AV=0,E=0 BV=0,E≠0 CV≠0,E=0 DV≠0,E≠0 All the four configurations are possible as represented in the adjacent figure.