An electron emitted by a heated cathode and accelerated through a potential difference of 2.0 kV, enters a region with uniform magnetic field of 0.15 T. Determine the trajectory of the electron if the field
is transverse to its initial velocity .

An electron emitted by a heated cathode and accelerated through a potential difference of 2.0 kV, enters a region with uniform magnetic field of 0.15 T. Determine the trajectory of the electron if the field makes an angle of 30^@ with the initial velocity .

An electron is accelerated through a potential difference of 1000 volt. Its velocity is nearly

A particle of mass m and charge q is accelerated through a potential differece V to a velocity vecv towards south. The particle enters a region with both a magnetic field vecB (pointing eastwards) and electric field vecE (pointing downwards). The particle travels with a constant velocity through this region. The potential difference V through this region should be equal to

A charged particle is in motion having initial velocity barV when it enter into a region of uniform magnetic field perpendicular to V. Because of the magnetic force the kinetic energy of the particle wil

A bar magnet of magnetic moment 1.5 J T^-1 lies aligned with the direction of a uniform magnetic field of 0.22 T. What is the torque on the magnet in cases (i) normal to the field direction , ii) opposite to the field direction ?

A straight wire of length 0.5 m carrying a current of 1.6 ampere is placed in a uniform magnetic field of induction 2 T. If the magnetic field is perendicular to the length of the wire, then force on the wire is

A charged particle moves with velocity of 3 xx 10^6 m//s at right angle to a uniform field of magnetic field 0.005 T. Find the value of the charge on the particle if it experience a force of 2 xx 10^-2 N .

A magnetic field set up using Helmholtz coils is uniform in a small, region and has a magnitude of 0.75 T. In the same region a uniform electrostatic field is maintained in a direction normal to the common axis of the coils . A narrow beam of (single species) charged particles all accelerated through 15 kV enters this region in a direction perpendicular to both the axis of the coils and the electrostatic field . If the beam remains undeflected when the electrostatic field is 9.0 xx 10^-5 V m^-1 , make a simple guess as to what the beam contains . Why is the answer not unique ?

A short bar magnet of magnetic moment m= 0.32frac(A)(m^2) is placed in a uniform magnetic field of 0.15T. If the bar is free to rotate in the plane of the field, which orientation would correspond to its stable equilibrium? What is the potential energy in each case?