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Standard XII

Physics

Current Loop Is a Magnet?

A hollow nonc...

Question

A hollow nonconducting sphere of radius "R "with charge "q" uniformly distributed over its surface. The sphere starts rotating with a constant angular velocity "w".about an axis passing through the centre of sphere.the net magnetic field at the centre of the sphere is..?

1.uqw÷2pi R

2.uqw÷3 pi R

3.uqw÷8 pi R

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Solution

There was a calculation erorr the final answer is
4uqw/12pir which simplifies to give
uqw÷3 pi R

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There was a calculation erorr the final answer is 4uqw/12pir which simplifies to give uqw÷3 pi R

There was a calculation erorr the final answer is
4uqw/12pir which simplifies to give
uqw÷3 pi R