Question

A non conducting disc having uniform positive charge q is rotating about its axis in anti clockwise direction

Answer 1

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A non conducting disc of radius r, charge q is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity charge q is uniformly distributed over its surface. The magnetic moment of the disc is.

Answer 2

Answer:

A charge Q is uniformly distributed over the surface of non - conducting disc of radius R. The disc rotates about an axis perpendicular to its plane and passing through its centre with an angular velocity w. As a result of this rotation a magnetic field of induction B is obtained at the centre of the disc. If we keep both the amount of charge placed on the disc and its angular velocity to be constant and vary the radius of the disc then the variation of the magnetic induction at the centre of the disc will be represented by the figure Read more on .......

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