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Q.

Five point charges each having magnitude q are placed at the corner of hexagon as shown in figure. Net electric field at the centre O is E→ . To get net electric field at O be 6E→ ,
charge placed on the remaining sixth comer should be

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a

6q

b

-6q

c

5q

d

-5q

answer is D.

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Detailed Solution

To obtained net field E at centre 0, the charge to be placed at remaining sixth comer is -5q

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