A copper wire carries a current of density `f = 1.0 A//mm^(2)`. Assuming that one free electron corresponds to each cooper atom, evalutea the distance which will be covered by an electron during its displacement `l = 10mm` along the wire.

A straight copper wire of length l = 1000 m and cross sectional area S = 1.0 mm^(2) carries a current I = 4.5 A . Assuming that one free electron corresponds to each copper atom, find, (a) the time it takes an electron to displace from one end of the wire to the other, (b) the sum of electric froces acting on all free electrons in the given wire.

Find the approximate total distance traveled by an electron in the time interval in which its displacement in one meter along the wire.

A straight copper-wire of length 100m and cross-sectional area 1.0 mm^(2) carries a current 4.5A. Assuming that one free electron corresponds to each copper atom, find (a) The time it takes an electron to displace from one end of the wire to the other. (b) The sum of electroc forces acting on all free electrons in the given wire. given resistivity of copper is 1.72xx10^(-8)Omega-m and density of copper is 8.96g//cm^(3) .

A current of 1.0 A exists in a copper wore of cross-section 1.0mm^(2) .Assuming one free electron per atonm calculate the drift speed of the free electrons in the wire.The density of copper is 9000kgm^(-3) .

A copper wire of mass 20 g carries a current of 6.023 A. What fraction of the total number of free electrons present in copper wire flows through the cross-section of the copper wire in 2 s ? (gram atomic weight of copper = 63.5 g)

Find free electrons per unit volume in a wire of density 10^(4)kg//m^(3) , atomic mass number 100 and number of free electron per atom is one.

A long straight wire carries a current of 10 A. An electron travels perpendicular to the plane of this wire at a distance 0.1 m with a velocity of 5.0 xx10^(6)m//s. What is the force acting on the electron due to the current in wire ?

An electric current of 16 A exists in a metal wire of cross section 10^(-6) m^(2) and length 1 m. Assuming one free electron per atom. The drift speed of the free electrons in the wire will be (Density of metal = 5 xx 10^(3) kg//m^(3) atomic weight = 60)