Two fixed charges \( 4 Q \) (positive) and Q (negative) are located at \( \mathrm{A} \) and \( \...

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Two fixed charges \( 4 Q \) (positive) and Q (negative) are located at \( \mathrm{A} \) and \( \mathrm{B} \), the distance \( \mathrm{AB} \) being \( 3 \mathrm{~m} \).
img src=https://penpencil-static-content.s3.ap-south-1.amazonaws.com/5eb393ee95fab7468a79d189/35flwa2o1xclj989wrh60z5ni.png /
(A) The point P where the resultant field due to both is zero is on \( \mathrm{AB} \) outside \( \mathrm{AB} \).
(B) The point \( P \) where the resultant field due to both is zero is on \( \mathrm{AB} \) inside \( \mathrm{AB} \).
(C) If a positive charge is placed at \( \mathbf{P} \) and displaced slightly along \( \mathrm{AB} \) it will execute oscillations.
(D) If a negative charge is placed at \( P \) and displaced slightly along \( \mathrm{AB} \) it will execute oscillation.
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