lentical point charges of 2 3 C are fixed to diagonally opposite corners of a square A third charge is then fixed at the center

Question

lentical point charges of 2 3 C are fixed to diagonally opposite corners of a square A third charge is then fixed at the center of the square such that it causes the potentials at the empty orners to change signs without changing magnitudes Find the sign and magnitude of the third charge Units umber he tolerance is 9

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