An electron experiences a magnetic force of magnitude` 4.60 xx 10^-15 N`, when moving at an angle of `60^@` with respect to a magnetic field of magnitude `3.50 xx 10^-3 T`. Find the speed of the electron.

A magnetised needle of magnetic moment 3.6 xx 10^(-2) T^(-1) is placed at 30^(@) with the direction of uniform magnetic field of magnitude 2 xx 10^(-2)T . Calculate the torque acting on the needle.

Calculate the work done in rotating a bar magnet of magnetic moment 3 JT^-1 through an angle of 60^@ from its position along a magnetic field of strength 0.34 xx 10^-4T

An electron having 182 eV kinetic energy is moving on a circular path in a magnetic field of 10^(-4)T . The speed of the electron is ......

A current carrying conductor of length 1 m is placed in a uniform magnetic field of 5 xx 10^-4 Wb/ m^2 at an angle of 60^@ with the field. If the magnetic force on the conductor is 3 xx 10^-3 N , calculate the current in the conductor.

An electron is moving with a speed of 3.5xx10^(5) m//s when it encounters a magnetic field of 0.60 T. The direction of the magnetic field makes an angle of 60.0^(@) with respect to the velocity of the electron. What is the magnitude of the magnetic force on the electron ?

An electron eneters a magnetic field of 5 T intensity with velocity of 5xx10^6ms^-1 at an angle of 30^@ with the field. Find the magnitude of the force acting on the electron.