Estimate the average drilft velocity of conduction electrons in a copper wire of cross-section `20xx10^-3` `cm^2` carrying a current of 20A. Assume the density of conduction electrons to be `9X10^28 m^3`.

Estimate the average drift velocity of conduction electron of a copper wire of cross section 2.0 times 10^-3 cm^2 carrying a current of 2.0A.Assume the density of conduction electrons to be 9 times 10^28 m^-3 .

Estimate the average drift speed of conduction electrons in a copper wire of across sectional area 1.0 times 10^-7 m^2 carrying a current of 1.5A.Assume the density of conduction electrons to be 9 times 10^28 m^-3 .

Estimate the average drift speed of conduction electrons in a copper wire of cross sectional area 1.0 times 10^-7 m^2 carrying a current of 1.5 A.Assume that the number density of conduction electrons is 9 times 10^25 m^-3 charge of an electron = -1.6 times 10^-19C .

Estimate the average drift speed of conduction electrons in a copper wire of cross sectional area 1 times 10^-7 m^2 carrying a current of 1.5 A.Assume that each copper atom contributes one conduction electron. The density of copper is 9 times 10^3 kg.m^-3 and its atomic mass is 63.5 u .

Estimate the average drift speed of conduction electrons in a copper wire of cross-sectioal 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 9.0xx 10^3 kg//m^3 and its atomic mass is 63.5.

A closely wound solenoid of 800 turns and area of cross section 2.5xx10^(-4)m^2 carries a current of 3A. What is its associated magnetic moment?

A Cu wire of cross sectional area 1mm^2 is carying current 0.21A. What is the drift velocity of the free ejectrons in the wire?. Electron density of Cu = 8.4xx10^28/m^3 .

The number density of conduction electron in copper is 8.5xx10^28(m^-3) and the mean free time between two collision is 2.5xx10^-14 s. What is the conductivity of copper ?