MEDIUM
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Two equal negative charges are fixed at points and on -axis. A positive charge is released from rest at the point on the -axis. The charge will,
(a)execute simple harmonic motion about the origin.
(b)move to the origin and remain at rest.
(c)move to infinity.
(d)execute oscillatory but not simple harmonic motion.

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Important Questions on Electric Charges and Fields
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Two charges of equal magnitudes and at a distance exert a force on each other. If the charges are halved and distance between them is doubled, then the new force acting on each charge is

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A negative charge is placed at the midpoint between two fixed equal positive charges, separated by a distance . If the negative charge is given a small displacement perpendicular to the line joining the positive charges, how the force developed on it will approximately depend on ?

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