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Four charge are placed at the corners of a square of side 10 cm as shown in figure having. If q is `1 mu C`, then what will be electric field intensity at the centre of the square?

A

`1.02xx10^(7) N//C` upwards

B

`2.04xx10^(7)N//C` downwards

C

`2.04xx10^(7)N//C` upwards

D

`1.02xx10^(7)N//C` downwards

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