A particle of mass m having a charge q enters a uniform magnetic field B.The angle between the direction of the velocity of the particle and the magnetic field is `theta`(`0^(@)`<`theta`<`90^(@)`)` . the angular velocity of the particle in its path is

When a charged particle enters a uniform magnetic field its kinetic energy

A proton, a deuteron and an alpha particle having same momentum enter a uniform magnetic field at right angles to the field. Then the ratio of their angular momenta during their motion in the magnetic field is

A charge particle of mass m and charge q enters in a region of uniform magnetic field as shown in figure.The magnitude of change in linear momentum due to magnetic field will be

A proton of mass m and charge q enters a magnetic field B with a velocity v at an angle theta with the direction of B .The radius of curvature of the resulting path is

A charged particle is moving on circular path with velocityv in a uniform magnetic field B, if the velocity of the charged particle is doubled and strength of magnetic field is halved, then radius becomes

A proton of mass m and charge q enters a region of uniform magnetic field of a magnitude B with a velocity v directed perpendicular to the magnetic field. It moves in a circular path and leaves the magnetic field after completing a quarter of a circle. The time spent by the proton inside the magnetic field is proportional to:

A charged particle enters a uniform magnetic field perpendicular to it. The magnetic field

A particle of mass m having a charge q enters into a circular region of radius R with velocity v directed towards the centre. The strength of magnetic field is B . Find the deviation in the path of the particle.

The figure shows two regions of uniform magnetic field of strengths 2B and 2B. A charged particle of mass m and charge q enters the region of the magnetic field with a velocity upsilon = (q B w)/(m) , where w is the width of each region of the magnetic field. The time taken by the particle to come out of the region of the magnetic field is

A charge q enters into a magnetic field (B) perpendicularly with velocity V. The time rate of work done by the magnetic force on the charge is