Home
Class 12
PHYSICS
A straight copper wire of length l = ...

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.

Promotional Banner

Similar Questions

Explore conceptually related problems

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 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 uniform copper wire of length 1m and cross section area 5 xx 10^(-7)m^(2) carries a current of 1A . Assuming that are 8 xx 10^(28) free electron per m^(3) in copper, how long will an electron take to drift from one end of the wire an electron the other. Charge on an electron = 1.6 xx 10^(-19)C

A uniform copper wire of length 1m and cross section area 5 xx 10^(-7)m^(2) carries a current of 1A . Assuming that are 8 xx 10^(28) free electron per m^(3) in copper, how long will an electron take to drift from one end of the wire an electron the other. Charge on an electron = 1.6 xx 10^(-19)C

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.

There is a copper wire of length 2.2 m, of area of cross-section 2.0sq.mm, carrying a current of 6.0A. If the number density of electrons in copper is 8.5 xx10^(28) m^(-3) , find the time taken by an electron to drift from one end to another end of the wire.

A uniform copper wire having a cross sectional area of 1 mm^(2) carries a current of 5 A. Calculate the drift speed of free electrons in it. (Free electron number of density of copper =2 times 10^(28)//m^(3) .)

Consider a wire of length 4m and cross - sectional area 1mm^(2) carrying a current of 2A. If each cubic metre of the material contains 10^(29) free electrons, find the average time taken by an electron to cross the length of the wire.