Tesla is a unit for measuring
Magnetic moment
Magnetic induction
Magnetic pole strength
None of these
An electron moves along vertical line and away from the observer, then pattern of concentric circular magnetic field lines which are produced due to its motion
The electron in the beam of a television tube move horizontally from south to north. The vertical component of the earth's magnetic field points down. The electron is deflected towards
Motion of a moving electron is not affected by
A charge $+ Q$ is moving upwards vertically. It enters a magnetic field directed to the north. The force on the charge will be towards
Which of the following particle will describe the smallest circle when projected with the same velocity perpendicular to the magnetic field ?