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NEST2017PhysicsElectrostatics

A ring of radius R is uniformly charged with linear charge density . A unit test charge of opposite sign is released from rest at a height h 2 R from the centre of the ring. The test charge moves along the axis. Ignore the effect of gravity. Then

Options

  1. Athe test charge will execute simple harmonic motion about the centre of the ring.
  2. Bthe magnitude of the force on the test charge when it moves towards the centre of the ring, increases and then
  3. Cthe magnitude of the force on the test charge kept on the axis and near the centre of the ring decreases with
  4. Dthe speed of the test charge at the centre of the ring is proportional to .

Correct answer

C. the magnitude of the force on the test charge kept on the axis and near the centre of the ring decreases with

Step-by-step solution

No solution available.

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