List of top Physics Questions on Magnetism and matter asked in BITSAT

A charged particle moves in a magnetic field with velocity $ v $ perpendicular to the field $ B $. The radius of the circular path is $ r $. Which of the following expressions gives the charge $ q $ of the particle?
At a place, if the earth’s horizontal and vertical components of magnetic field are equal, the angle of dip will be:
If \( m \) is magnetic moment and \( B \) is the magnetic field, then the torque is given by:
Magnetic moment of bar magnet is \( M \). The work done to turn the magnet by 90° of magnet in direction of magnetic field \( B \) will be:
If M is the magnetic moment and B is the magnetic field, the torque acting on the magnetic dipole is given by:
Two solenoids of same cross-sectional area have their lengths and number of turns in ratio of 1:2. The ratio of self-inductance of two solenoids is
At the magnetic north pole of the earth, the value of horizontal component of earth’s magnetic field and angle of dip are, respectively
If on combining two charged bodies, the current does not flow then