Embibe Experts Solutions for Chapter: Magnetic Effect of Current and Magnetic Force on Charge or Current, Exercise 1: Exercise#1

When the number of turns in a toroidal coil is doubled, then the value of magnetic flux density will become,

A long solenoid carrying a current produces a magnetic field $B$ along its axis. If the current is doubled and the number of turns per $\mathrm{cm}$ is halved, the new value of the magnetic field is,

The correct curve between the magnetic induction $\left(B\right)$ along the axis of a long solenoid due to current flow $i$ in it and at a distance $x$ from one end is,

Magnetic dipole moment of rectangular loop is,

If the angular momentum of electron is $\overrightarrow{\mathit{j}}$, then its magnetic moment will be,

When a charged particle moves at right angles to a magnetic field, then which of the following quantities changes,

A uniform field exists in the region directed away from the page. A charged particle moving in the plane of the page follows an anticlockwise spiral of increasing radius as shown. True explanation is,

The radius of a coil of wire with $N$ turns is $0.22 \mathrm{m}$ and $3.5 \mathrm{A}$ current flows clockwise in the coil as shown. A long straight wire carrying a current $54 \mathrm{A}$ towards the left is located $0.05 \mathrm{m}$ from the edge of the coil. The magnetic field at the centre of the coil is $0 \mathrm{T}$. The number of turns $N$ in the coil are,