An electron enters `5hat i` T magnetic field with the velocity `4hati m//s`. What is the value of force on the electron? Find out its direction.

An electron revolves along a circular path on a plane perpendicular to a uniform magnetic field of 0.001 T with a velocity of 10^(6)m.s^(-1) . (i) What is the force acting on the electron? (ii) What is the radius of its circular path? (iii) For each complete revolution of the electron what will be the increase of its energy? Given, charge of an electron =-1.6xx10^(-1)C mass =9.1xx10^(-31)kg .

An electron enters a magentic field of 3T at an angle of 30^(@) with a velocity of 10^(6)m.s^(-1) . What force will act on the electron? e=1.6xx10^(-19)C

An electron moving with velocity vecv along positive x-axis enters a uniform magnetic field vecB direction along positive y-axis. What is the magnitude and direction of force on the electron?

A proton enters a magnetic field vecB with velocity vecV in a direction opposite to vecB .The net magnetic force is—

A particle having q enters a magnetic field with a velocity vecv in the direction normal to the field. Determine the radius of the circular path described by the particle and its frequency of rotation.

An electron is moving along X axis and a magnetic field is directed along Y axis. What will he the direction of magnetic force acting on the electron?

In a region, a uniform electric field of 100V.m^(-1) is acting along x-axis and a uniform magnetic field of 10^(-4)T along y-axis. If an electron enters that region along z-axis with a velocity of 10^(5)m.s^(-1) , determine the magnitude and direction of the force acting on it. Charge of an electron =1.6xx10^(-19)C .

A cubical region of space is filled with some uniform electric and magnetic fields. An electron enters the cube across one of its faces with velocity vecv and a position enters via opposite face with velocity -vecv . At this instant,

An electron enters an electric field having intensity vecE=3hati+6hatj+2hatkV.m^(-1) and a magnetic field having induction vecB=2hati+3hatjT with a velocity vecv=2hati+3hatjm.s^(-1) . The magnitude of the force acting on the electron is (Given e=-1.6xx10^(-19)C )

An electron of charge -e and mas m is placed in a uniform electric field of intensity E. The value of E is such that the force on the electron due to the electric field is equal to its weight . Under this condition the value of E is