In given figure, two positive charges q₂ and q₃ fixed along the y axis, exert a net electric force in the +x, direction on a charge q₁, fixed along the x axis. If a positive charge Q is added at (x, 0), the force on q₁

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shall increase along the Positive x-axis.

shall increase but the direction changes because of the intersection of Q with q₂ and q₃.

shall point along t}le negative x-axis.

shall decrease along the positive x-axis

answer is A.

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Detailed Solution

Net force on charge q₁, by other charges q₂ and q₃ is along the +x-direction, so nature of force between q₁ and q₂and q₁ and q₃ is attractive. This is possible when charge q₁ is negative. Now, if a positive charge Q is placed at (x, 0), then, the force on q₁ will increase. The direction will be along positive x-axis.

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