A point charge Q is placed at the mid point pf a line joining charge 4

1.	A point charge Q is placed at the mid point pf a line joining charge 4 q and q if the net force an charge q is zero then Q must be equal to ,A=+q, B=minus 2 q, C= minus q , D = +4q
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A point charge Q is placed at the mid point pf a line joining charge 4 q and q if the net force an charge q is zero then Q must be equal to ,A=+q, B=minus 2 q, C= minus q , D = +4q

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A point charge Q is placed at the mid point pf a line joining charge 4 q and q if the net force an charge q is zero then Q must be equal to ,A=+q, B=minus 2 q, C= minus q , D = +4q​

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A point charge Q is placed at the mid point pf a line joining charge 4 q and q if the net force an charge q is zero then Q must be equal to ,A=+q, B=minus 2 q, C= minus q , D = +4q