Question

Four identical charges i.e. q each are placed at the corners of a square of side 'a'. The charge that must be placed at the centre of the square such that the whole system of charges is in equilibrium, is (1 ) 9 4 1 (3) 12/2+1) (2) : (212 +1 (4) 4 (3/3 +1​

Answer 1

Answer:

Four identical charges i.e. q each are placed at the corners of a square of side 'a'. The charge that must be placed at the centre of the square such that the whole system of charges is in equilibrium, is (1 ) 9 4 1 (3) 12/2+1) (2) : (212 +1 (4) 4 (3/3 +1

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