A charge `'e'` moves round a circle of radius `'r'` with a uniform speed `'v'`. The magnitude of the magnetic induction at the centre of the circle is

A charge q coulomb ,moves in a circle of radius r metres, at n revolutions per second.The magnetic field induction at the centre of the circle will be

A charged partice is moving in a circle of radius R with uniform speed v. The associated magnetic moment mu is given by

A charge particle (charge q ) is moving in a circle of radius R with uniform speed. v The associated magnetic moment m is given by

An electron moves in a circular orbit with a uniform speed v.It produces a magnetic field B at the centre of the circle. The radius of the circle is proportional to

An electron moves in a circular orbit with a uniform speed v. It produces a magnetic field B at the centre of the circle. The radius of the circle is proportional to

An electron moves in a circular orbit with a uniform speed v .It produces a magnetic field B at the centre of the circle. The radius of the circle is proportional to

An electron moves in a circular orbit with a uniform speed v .It produces a magnetic field B at the centre of the circle. The radius of the circle is proportional to