Four point charges 20 20 Q and Q are fixed on the vertices of a square whose sides have length L as shown in figure The point O

Question

Four point charges 20 20 Q and Q are fixed on the vertices of a square whose sides have length L as shown in figure The point O is the intersection point of diagonals of the squa 2KQ fifth point charge 4Q is slowly moved from infinity to point O The work done by external agent during this process is av Write va in OMR sheet 1 20

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