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.

A straight copper-wire of length 100m and cross-sectional area 1.0mm^(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 electrostatic 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 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 atom calculate the drift speed of the free electrons in the wire. The density of copper is 9000kg m^(-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 radius 0.6 mm carries a current of 1A. Assuming the current to be uniformly distributed over a cross sectional area, find the magnitude of current density.

A copper wire of diameter 2/(3sqrtpi)mm is carrying a current of 1 amp. Calculate the number of free electrons which flow past any cross section of the wire per sec Also find the average speed with which free electrons are flowing in the copper wire assuming that there is one free electron per atom of copper. Number of atmos per cm^3 of copper =9 times 10^22 , electronic charge =1.6 times 10^-19 coulomb.