> Six charges, three positive and three negative of equal magnitude are to be placed at the vertices of a regular hexagon such that the electric field at O is double the electric field when only one positive charge of same magnitude is placed at R Which of the following arrangements of charge is possible for, P, Q, R, S, T and U respectively ? – LIVE ANSWER TODAY

Six charges, three positive and three negative of equal magnitude are to be placed at the vertices of a regular hexagon such that the electric field at O is double the electric field when only one positive charge of same magnitude is placed at R Which of the following arrangements of charge is possible for, P, Q, R, S, T and U respectively ?

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Which of the following arrangements of charge is possible for, P, Q, R, S, T and U respectively ?

Solution:

According to option (d) the electric field due to P and S and due to Q and T add to zero. While due to U and R will be added up. Hence, the correct option is (d).

(P) Component of forces along x-axis will vanish.

Net force along positive 7-axis

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(Q) Component of forces along 7-axis will vanish. Net force along positive x-axis

(R) Component of forces along x-axis will vanish. Net force along negative 7-axis

(S) Component of forces along 7-axis will vanish. Net force along negative x-axis

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