An electron performs uniform circular motion in a region of magnetic field of induction `3 xx 10^(-3) Wb//m^(2)` . If the radius of the circular path of the electron is 2 cm , then the momentum of the electron will be

An electron enters in a magnetic held of induction 2 m T with velocity of 1.8 xx 10^(7) m/s . The radius of circular path is

An electron moving with a kinetic energy of 1.5 xx 10^(3) eV enters in a region of uniform magnetic field of induction 4 xx 10^(-3) Wb//m^(2) at right angles to the direction of motion of the electron . The radius of circular path of the electron in the magnetic field is

The radius of circular path of an electron when subjected to a perpendicular magnetic field is

A particle carrying a charge moves perpendicular to a uniform magnetic field of induction B with a momentum p then the radius of the circular path is

A 10eV electron is circulating in a plane at right angles to a uniform field at magnetic induction 10^(-4) Wb//m^(2) (=1.0 gauss). The orbital radius of the electron is

An electron is moving in a circle of radius 'r' in a uniform magnetic field 'B'. Suddenly the field is reduced to ('B')/(2) . The radius of the circular path now becomes

An electron is projected in a perpendicular uniform magnetic field of 3 xx 10^(-3) T . If electron moves in circle of radius 4 mm , then linear momentum of electron is

An electron is moving in a circle of radius r in a uniform magnetic field B. Suddenly the field is reduced to B/2 . The radius of the circular path now becomes.

An electron accelerated through 500 V , enters a transverse uniform magnetic field of magnitude 100 mT . The radius of the circular path described by the electron is nearly

An electron accelerated through 500 V , enters a transverse uniform magnetic field of magnitude 100 mT . The radius of the circular path described by the electron is nearly