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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?
  1. V=0,E=0
  2. V=0,E0
  3. V0,E=0
  4. V0,E0

A
V=0,E=0
B
V=0,E0
C
V0,E0
D
V0,E=0
Solution
Verified by Toppr

All the four configurations are possible as represented in the adjacent figure.
Hence, correct answers are options A, B, C and D.

587358_89638_ans.png

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