Home
Class 12
PHYSICS
Find the average drift speed of free el...

Find the average drift speed of free electrons in a copper wire of area of cross-section `10^(-7) m^(2)` carrying current of 1.5 A and having free electron density `8.5 xx 10^(28) m^(-3)`

Text Solution

AI Generated Solution

To find the average drift speed of free electrons in a copper wire, we can follow these steps: ### Step 1: Write down the given data - Current (I) = 1.5 A - Area of cross-section (A) = \(10^{-7} \, m^2\) - Free electron density (n) = \(8.5 \times 10^{28} \, m^{-3}\) - Charge of an electron (e) = \(1.6 \times 10^{-19} \, C\) ...
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    AAKASH INSTITUTE ENGLISH|Exercise Try Yourself|34 Videos
  • CURRENT ELECTRICITY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION-A(OBJECTIVE TYPE QUESTIONS))|69 Videos
  • COMMUNICATION SYSTEMS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION D (Assertion-Reason)|10 Videos
  • DUAL NATURE OF RADIATION AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-D)|10 Videos

Similar Questions

Explore conceptually related problems

Estimate the average drift speed of conduction electrons in a copper wire of cross-sectional area 2.5xx10^(-7)m_(2) carrying current of 1.8 A. Assume the density of conduction electrons to be 9xx 10^(26)m_(3) .

Estimate the average drift speed of conduction electrons in a copper wire of cross-sectional area 1.0xx10^(-7)m^(2) carrying a current of 1.5xx10^(-19) A. Assume the density of conduction electrons to be 9xx10^(28)m^(-3) .

Estimate the average drift velocity of conduction electrons in a copper wire of cross-sectional area 2.5 xx 10^(-7) m^(2) , carrying a current of 2.7 A. Assume the density of conduction electrons to be 9 xx 10^(28) m^(-3) .

(a) Estimate the average drift speed of conductin electrons in a copper wire of cross sectional area 1.0xx10^(-7) m^2 carrying a current of 1.5 A. Assume that each copper atom contributes roughly one conduction electron. The density of copper is 9.0xx10^3 kgm^(-3) and its atomic mass is 63.5 u. (b) Compare the drift speed obtained with the speed of propagation of electric field along the conductor, which causes the drift motion.

Estimate the average drift speed of conduction electrons in a copper wire of cross-sectional area 2.0 xx 10^(-7)m^(2) carrying a current of 3.0 A. Assume that each copper atom contributes roughly one conduction electron. The density of copper is 9.0 xx10^(3) kg//m^(3) , and its atomic mass is 63.5 u.

Calculate the electric field in a copper wire of cross-sectional area 2.0mm^(2) carrying a current of 1A .The resistivity of copper =1.7xx10^(-8)(Omega)m .

Calculate the drift speed of the electrons when 1A of current exists in a copper wire of cross section 2 mm^(2) .The number of free electrons in 1cm^(3) of copper is 8.5xx10^(22) .

What is the drift velocity of electrons in a silver wire of length 2 m, having cross-sectional area 6.14xx10^(-6)m^(2) and carrying a current of 5A. Given, atomic weight of silver = 108, density of silver =9.5xx10^(3)kg//m^(3) , charge of electron =1.6xx10^(-19)C , Avogadro's number =6.023xx10^(26) per kmol?

If 10^(6) electrons/s are flowing through an area of cross section of 10^(-4) m^(2) then the current will be:-

A copper wire has a square cross-section, 2.0 mm on a side. It carries a current of 8 A and the density of free electrons is 8 xx 10^(28)m^(-3) . The drift speed of electrons is equal to