A thin fixed ring of radius a has a positive charge q uniformly distributed over it.A particle of mass m having a negative charge Q

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A thin fixed ring of radius a has a positive charge q uniformly distributed over it.A particle of mass m having a negative charge Q, is placed on the axis at a distance of x(x<<a) form the center of the ring. Show that the motion of the negatively charged particle is approximately simple harmonic. Calculate the time period of oscillation.
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A thin fixed ring of radius a has a positive charge q uniformly distributed over it.A particle of mass m having a negative charge Q, is placed on the axis at a distance of x(x<<a) form the center of the ring. Show that the motion of the negatively charged particle is approximately simple harmonic. Calculate [...]
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Tags: A thin fixed ring of radius a has a positive charge q uniformly distributed over it.A particle of mass m having a negative charge Q , both the balls are on same horizontal level. the angle between the two strings is theata = 45degree in the position. find the elestrostic force between the balls in this position. , each of value Q , Four equal positive charges , in equilibriujm , Two small charged balls of masses m1 = 2 m and m2 = m have unequal positive charge on them. Both balls are suspended by two strings of unequal lengths from a common point such that ,