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Questions  

Charges of +103×10-9C are placed at each of the four comers of a square of side 8 cm. The potential at the intersection of the diagonals is

a
1502 volt
b
15002 volt
c
9002 volt
d
900 Volt

detailed solution

Correct option is B

Potenti. al at the centre O, V=4×14πε0·Qa/2 where Q=103×10-9C and a=8 cm=8×10-2 m So V=4×9×109×103×10-98×10-22=15002 volt

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