Energy Density in Magnetic Field

The ratio of energy stored per unit volume in a solenoid having magnetic induction $B$ to the electrostatic energy stored per unit volume in a capacitor in elcctric field $E$ is

For a long current carrying solenoid having inside magnetic field is $0.6 \mathrm{T}$. Find the magnetic energy per unit volume.

The energy stored in a $40 \mathrm{mH}$ inductor when a current of $6 \mathrm{A}$ passes through it is

By inserting a soft iron piece into a solenoid, strength of the magnetic field

A current of 2A flows through a solenoid of self-inductance of 3 mH. the energy stored in the solenoid will be-

Write the energy density formula in the case of a magnetic field or inductor.

The magnetic energy per unit volume is

The flux linked with a coil at any instant $t$ is given by: $\varphi = 2t^2–t+1$. The magnitude of induced emf at $t=3$ $\sec$ is.

In an electromagnetic wave, the average energy density associated with the magnetic field will be

A coil has an inductance of $5 \mathrm{H}$ and a resistance $20 \mathrm{\Omega }$. An emf of $100 \mathrm{V}$ its applied to it. What is the energy stored (in joule) in the magnetic field, when the current has reached its final steady value?

Current flowing through a solenoid having inductance $2 \mathrm{mH}$ is $4 \mathrm{A}$. Find the energy stored in the solenoid.

Magnetic energy stored in the solenoid in the terms of magnetic field $B$, area $A$ and length $L$ of the solenoid.