A uniform magnetic field B and electric field E exist along y and negative z axis respectively. Under the influence of these field a charge particle moves along OA undeflected. If electric field is switched off, find the pitch of helical trajectory in which the particle will move.

A charged particle moving in an electric field

A charged particle is moved along a magnetic field line. The magnetic force on the particle is

A charged particle is moved along a magnetic field line. The magnetic force on the particle is

A charged particle is moved along a magnetic field line. The magnetic force on the particle is

A charged particle is moved along a magnetic field line. The magnetic force on the particle is

An electron is released from the origin at a place where a uniform electric field E and a uniform magnetic field B exist along the negative y-axis and the nagative z-axis respectively. Find the displacement of the electron along the y-axis when its velocitybecomes perpendicular to the electric feld for the first time.

An electron is released from the origin at a place where a uniform electric field E and a uniform magnetic field B exist along the negative y-axis and the nagative z-axis respectively. Find the displacement of the electron along the y-axis when its velocitybecomes perpendicular to the electric feld for the first time.