List of top Physics Questions on Moving charges and magnetism asked in TS POLYCET

The magnetic effect due to current was discovered by \dots
The shape of the magnetic field lines around a straight wire carrying current is:
Which of the following is constant throughout a uniform magnetic field?
The magnetic force exerted on a 3 m length conductor carrying 2A current when placed in a uniform magnetic field 0.4 T at an angle 30° is