List of top Physics Questions on Magnetic Effects of Current and Magnetism asked in Bihar Board XII

What will be the path followed by a charged particle moving along a magnetic field.
In a vertically upwards magnetic field \(\vec{B}\), a positively charged particle is projected horizontally eastwards. What will be the direction of force on the particle?
The radius of a circular current loop is made double and the current is made half. The magnetic moment of the loop will become
If T is time period and V is maximum speed of a charged particle in cyclotron, then