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?

V = 0, E = 0

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V = 0, E \neq 0

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V \neq 0, E = 0

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V \neq 0, E \neq 0

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Solution

The correct options are
A $V = 0, E = 0$
B $V = 0, E \neq 0$
C $V \neq 0, E = 0$
D $V \neq 0, E \neq 0$
All the four configurations are possible as represented in the adjacent figure.
Hence, correct answers are options A, B, C and D.

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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?

The correct options are A V=0,E=0 B V=0,E≠0 C V≠0,E=0 D V≠0,E≠0All the four configurations are possible as represented in the adjacent figure.Hence, correct answers are options A, B, C and D.

The correct options are
A $V = 0, E = 0$
B $V = 0, E \neq 0$
C $V \neq 0, E = 0$
D $V \neq 0, E \neq 0$
All the four configurations are possible as represented in the adjacent figure.
Hence, correct answers are options A, B, C and D.