Embibe Experts Solutions for Chapter: Magnetic Effect of Current, Exercise 1: JKCET 2019

The cyclotron assembly is filled with

The C.G.S. unit of magnetic field at a point, due to Biot-Savart law is

Which of the following is true with respect to Roget's spiral experiment?

A very long conductor carries a current of $1 \mathrm{A}$. The magnetic field at a point whose distance is $0.1 \mathrm{m}$ from one end of the conductor is (in $T$ )

Choose the correct statement in the following:

(a) The magnetic field inside the solenoid is greater than that of outside
(b) The magnetic field inside an ideal solenoid is not at all uniform
(c) The magnetic field at the centre, inside an ideal solenoid is almost twice that at the ends
(d) The magnetic field at the centre, inside an ideal solenoid is almost half of that at the ends

Work done in displacing a Magnetic Dipole of magnetic moment $M$, (Bar Magnet) in Uniform Magnetic Field $B$ from an angle ${\theta }_1$ to ${\theta }_2$ is