A charge of `2 × 10^(–2) C` moves at 30 revolution per second in a circle of diameter 0.80 m. The current linked with the circuit will be -

A charge of 2 xx 10^(-2) C moves at 30 revolutions per second in a circle of diameter 80 cm. The current linked with the circuit is .....

An electron makes ( 3 xx 10^5) revolutions per second in a circle of radius 0.5 angstrom. Find the magnetic field B at the centre of the circle.

An electron makes ( 3 xx 10^5) revolutions per second in a circle of radius 0.5 angstrom. Find the magnetic field B at the centre of the circle.

An electron makes ( 3 xx 10^5) revolutions per second in a circle of radius 0.5 angstrom. Find the magnetic field B at the centre of the circle.

A point charge 3.2 xx 10^(-19) C " makes " 7 xx 10^(15) revolutions per second in a circular path of radius 1 Å . Calculate the magnetic induction at the centre of the circular path.

A charge q coulomb moves in a circle at n revolution per second and the radius of the circle is r metre. Then magnetic feild at the centre of the circle is

A charge q coulomb moves in a circle at n revolution per second and the radius of the circle is r metre. Then magnetic feild 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 particle is moving in a circle of diameter 10 m . The distance covered by it on completing 2 revolutions is