Home
Class 12
PHYSICS
Consider the following quantities: numbe...

Consider the following quantities: number density of free electrons, n, mean free time of electrons between collisions,t , drift velocity of electrons, `v_d` , resistivity, p.
A constant potential difference is applied across a conductor. Assuming that the temperature of the conductor remains constant, which of these quantities is/are independent of the magnitude of the potential difference applied?

A

n and p

B

`n, v_d and p`

C

n,t and p

D

only p

Text Solution

AI Generated Solution

To determine which quantities are independent of the magnitude of the potential difference applied across a conductor, we will analyze each quantity in the context of the given conditions: constant potential difference and constant temperature. ### Step-by-Step Solution: 1. **Identify the Quantities**: - Number density of free electrons, \( n \) - Mean free time of electrons between collisions, \( t \) - Drift velocity of electrons, \( v_d \) ...
Promotional Banner

Topper's Solved these Questions

  • DC CIRCUIT

    VMC MODULES ENGLISH|Exercise LEVEL-1 DAILY TUTORIAL SHEET-2|15 Videos
  • DC CIRCUIT

    VMC MODULES ENGLISH|Exercise LEVEL-1 DAILY TUTORIAL SHEET-3|15 Videos
  • DC CIRCUIT

    VMC MODULES ENGLISH|Exercise LEVEL-0 LONG ANSWER TYPE|3 Videos
  • CURRENT ELECTRICITY

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-F|10 Videos
  • DYNAMICS OF A PARTICLE

    VMC MODULES ENGLISH|Exercise JEE Advance (Archive) Level - II (SINGLE OPTION CORRECT TYPE )|31 Videos

Similar Questions

Explore conceptually related problems

How does the mobility of electrons in a conductor change, if the potential difference applied across the conductor is doubled, keeping the length and temperature of the conductor constant ?

Derive the expression for drift velocity of free electron in terms of relaxation time and electric field applied across a conductor.

Derive the expression for drift velocity of free electron in terms of relaxation time and electric field applied across a conductor.

A constant potential difference is applied across a metal wire. Let the average thermal velocity of electrons in the wire be v_t and let the drift velocity be v_d . As the temperature of the wire rises:

A potential difference of 10 V is applied across a conductor of resistance 1 k Omega . Find the number of electrons flowing through the conductor in 5 minutes.

A potential difference of 5V is applied across a conductor of length 10 cm. IF drift of electron is 2.5 xx 10^(-4) m//s , then electron mobility in SI unit is

A constant potential difference is applied across a resistance. Consider variation of resistance with temperature. Which graph represents best the variation of power produced in resistance versus resistance?

A cross a metallic conductor of non-uniform cross-section, a constant potential difference is applied. The quantity which remain (s) constant along the conductor is

Derive the expression for the current density of a conductor in terms of the conductivity and applied electic field. Explain with reason how the mobility of electrons in a conductor changes when the potential difference applied is doubled, keeping the temperature of the conductor constant.

How does the mobility of electrons in a conductor change, if the p.d. applied across the conductor is doubled, keeping its length and temperature constant?