The area of cross-section, length and density of a piece of a metal of atomic weight `60` are `10^-6 m^2`, `1.0 m` and `5xx10^3 kg//m^3` respectively,every atom contributes one free electron. (Given Avogadro number `=6xx10^23//mol)`. Find the drift velocity of electrons in the metal when the current of `16A` passes through:

A current of 5 ampere is passing through a metallic wire of cross-section area 4 xx 10^-6 m^2 . If the density of the charge carries in the wire is 5 xx 10^26 m^3 , find the drift speed of the electrons. (b) In copper there are 10^22 free electrons per c.c. , all of which contribute to a current of 1 ampere in a wire of copper of 0.01 cm^2 cross-sectional area : (i) What is the average speed of electrons in the copper ? (ii) What is the electric field in the wire ? Given specific resistance of copper 1.6 xx 10^-8 ohm-meter . ( c) The area of cross-section, length and density of a piece of a metal of atomic weight 60 are 10^-6 m^2, 1.0 m and 5 xx 10^3 kg//m^3 respectively. Find the number of free electrons per unit volume if every atom contributes one free electron. Also, find the drift velocity of electrons in the metal when a current of 16 A passes through it. (Given : Avogadro number 6 xx 10^26//kg-"mole" ).

Electron density in a conductor of area of cross section 0.006 cm^2 is 8.0 xx10^(22) cm ^(-3) . Calculate the drift velocity of electron in the wire if a current of 2 flows through it.

A current of 10 A is maintained in a conductor of cross-section 1 cm^(2) . If the free electron density in the conductor is 9 xx 10^(28) m^(-3) , then drift velocity of free electrons is

A copper wire fo cross-sectional area 3.00xx10^(-6) m^2 carries a current 10.0A. a. Find the drift speed of the electrons in the wire. Assume that each copper atom contributes one free electron to the body of material. b. Find the average time between collisions for electrons in the copper at 20^@C. The density of copper si 8.95 gcm^(-1) , molar mass of copper is 63.5 gmol^(-1) , Avogadro number is 6.02x10^(23) electrons per mol and resistivity of copper is 1.7 xx10^(-8) Omegam.

A current of "1.6A" is flowing through "h" wire having cross- sectional area 1mm^(2) .If density of free electrons in the material of the wire is 10^(29) per m^(3) ,the drift velocity of electrons will be:-

There is a current of 40 A in a wire 10^(-6)m^(2) area of cross-section. If the number of free electrons per cubic metre is 10^(29) , then the drift velocity is :

A current of 4.4A is flowing in a copper wire of radius 1mm density of copper is 9 xx 10^(3)kg m^(-3) and its atoms is 63.5u If every atoms of copper contributes one condition electron , then the drift velocity of electrons is nearly [density of copper 9 xx 10^(3) kg m^(3)]