Magnetism Questions

A current loop in a magnetic field :-

A circular coil placed in a uniform magnetic field. If alternating current flows through this coil then :-

A 250-Turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 μA and subjected to magnetic field of strength 0.85 T. Work done for rotating the coil by 180∘ against...

An electron, a proton and an alpha particle having the same kinetic energy are moving in circular orbits of radii re, rp, rα respectively in a uniform magnetic field B. The relation between re, rp,...

A metallic rod of mass per unit len gth 0.5 kg m–1 is lying horizontally on a smooth inclined plane which makes an angle of 30° with the horizontal. The rod is not allowed to slide down by f...

When a proton is released from rest in a room, it starts with an initial acceleration a0 towards west. When it is projected towards north with a speed v0 it moves with an initial acceleration 3a0 towa...

A particle of mass M and positive charge Q, moving with a constant velocity , enters a region of uniform static magnetic field normal to the x-y plane. The region of the magnetic field extends from x ...

Two particles X and Y having equal charges, after being acceleration through the same potential difference, enter a region of uniform magnetic field and describe circular path of radii R1 and R2 respe...

A proton, a deutron and an α - particle having the same kinetic energy are moving in circular trajectories in a constant magnetic field. If rp, rd and rα denote respectively the radii of the...

Two particles, each of mass m and charge q, are attached to ends of a light rigid rod of length 2R. The rod is rotated at a constant angular speed about a perpendicular axis passing through its centre...

A charge particle is released from rest in a region of steady and uniform electric amd magnetic fields which are parallel to each other. The particle will will move in a

An ionzed gas contains both positive and negative ions. If it is subjected simulaneously to an electric field along the +x-direction and a magnetic field along the +z-direction, then...

A particle of charge q and mass m moves in a circular orbit of radius r with angular speed ω. The ratio of the magnitude of its magetic moment to that of its angular momentum depend on...

particle of mass m and charge q moves with a constant velocity v along the positive x-direction. It centre region containing a uniform magnetic field B directed along the negative z-direction, extendi...

In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in this region. The path of the particle...

A charged particle of mass m and charge q travels on a circular path of radius r that is perpendicular to a magnetic field B. The time taken by the particle to complete one revolution is...

A particle of mass M and charge Q moving with velocity describes a circular path of radiusR when subjected to a uniform transverse magnetic field of induction B. The work done by the field when the pa...

A particle of charge -16×10-18 coulomb moving with velocity 10 ms-1 along the x-axis enters a region where a magnetic field of induction B is along the y-axis, and an electric field of magnitude ...

A particle of charge -16×10-18 coulomb moving with velocity 10 ms-1 along the x-axis enters a region where a magnetic field of induction B is along the y-axis, and an electric field of magnitude ...

If an electron and a proton having same momenta enter perpendicular to a magnetic field, then