Question
Obtain an expression for energy of a charged capacitor and express it in different forms.

Answer

coming soon…

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Explain the reflection of transverse and longitudinal waves from a denser medium and a rarer medium.
The initial pressure, volume and temperature of a gas are respectively $1 \times 10^5 Pa , 2 \times 10^{-2} m ^3$ and $400 K$. The temperature of the gas is reduced from $400 K$ to $300 K$ at constant volume. Then the gas is compressed at constant temperature so that its volume becomes $1.5 \times 10^{-2}$ $m ^3$.
An alpha particle $($carrying a positive charge $q=3.2 \times 10^{-19} C )$ enters a region of uniform magnetic field of induction $\vec{B}=(0.5 \hat{ i }+\hat{ j }-\hat{ k })$ T with a velocity $\vec{v}=(4 \hat{ i }+4 \hat{ j }+\hat{ k }) \times 10^2\ m / s$. What is the force $\vec{F}$ on the alpha particle?
The two headlights of an approaching automobile are $1.22 m$ apart. At what maximum distance will eye resolve them? Assume a pupil diameter of $5.0 mm$ and $\lambda=5500 A$. Assume also that this distance is determined only by the diffraction effect at the circular aperture.
Express the mean free path of a gas molecule in terms of pressure and temperature.
A gas contained in a cylinder surrounded by a thick layer of insulating material is quickly compressed.
(a) Has there been a transfer of heat?
(b) Has work been done?
A string is fixed at the two ends and is vibrating in its fundamental mode. It is known that the two ends will be at rest. Apart from these, is there any position on the string which can be touched so as not to disturb the motion of the string? What will be the answer to this question if the string is vibrating in its first and second overtones?
A coil of self inductance $3 H$ and resistance $100 \Omega$ carries a steady current of $2 A$. (a) What is the energy stored in the magnetic field of the coil? (b) What is the energy per second dissipated in the resistance of the coil ?
What are harmonics and overtones?
The primary and secondary coils of a transformer each have an inductance of $200 x 10^{-6}\ H$. The mutual inductance between the windings is $4 x 10^{-6}\ H$. What percentage of the flux from one coil reaches the other?