Question
Define the term relaxation time' in a conductor.

Answer

Def: The average time, between successive collisions of electrons, (in a conductor) is known as relaxation time.

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

Suppose that the electric field part of an electromagnetic wave in vacuum is $\text{E}=\{(3.1 \ \text{N}/\text{C}\cos[(1.8 \text{rad}/ \text{m}) \text{y}+(5.4\times10^6 \ \text{red}/\text{s}\text{t}]\hat{\text{i}}\}$.
  1. What is the direction of propagation?
  2. What is the wavelength λ ?
  3. What is the frequency ν ?
  4. What is the amplitude of the magnetic field part of the wave?
  5. Write an expression for the magnetic field part of the wave.
Find the dimensional formula of $\in_0.$
If a point charge is rotated in an arc of radius r around a charge q, what will be the work done? Explain.
Consider the situation shown in figure. The width of each plate is b. The capacitor plates are rigidly clamped in the laboratory and connected to a battery of emf $\in.$ All surfaces are frictionless. Calculate the value of M for which the dielectric slab will stay in equilibrium.
The value of electric flux through a closed surface is zero. What does this mean?
When unpolarised light from air, passes through transparent medium, in which direction will the reflected light be polarized?
Light from a point source in air falls on a spherical glass surface ( $n=1.5$ and radius of curvature $=20 cm )$. The distance of the light source from the glass surface is $100 cm$. At what position the image is formed?
Write the upper and lower limits of interference in terms of path difference.
Two charged particles having charge $2.0 × 10^{-8}$C each are joined by an insulating string of length 1m and the system is kept on a smooth horizontal table. Find the tension in the string.
What is the relationship between the radius R of a nucleus and the mass number (A) of an atom?