A copper wire has a square cross-section, 2.0 mm on a side. It carries a current of 8 A and the density of free electrons is `8 xx 10^(28)m^(-3)`. The drift speed of electrons is equal to

A copper wire has a square cross section of 6 mm on a side. The wire is 10 m long and carries a current of 3.6A. The density of free electrons id 8.5x10^(28)//m^3. Find the magnitude of (a) the current density in the wire , (b) the electric field in the wire. (c ) How much time is required for an electron to travel the length of the wire? ("rh, electrical resistivity, is" 1.72 xx10^(-8) Omegam.)

A copper wire has a square cross section of 6 mm on a side. The wire is 10 m long and carries a current of 3.6A. The density of free electrons id 8.5x10^(28)//m^3. Find the magnitude of (a) the current density in the wire , (b) the electric field in the wire. (c ) How much time is required for an electron to travel the length of the wire? ("rh, electrical resistivity, is" 1.72 xx10^(-8) Omegam.)

A copper wire of 2.5 xx 10^-6 m^2 area carries a current of 1.6A. If the number density of the electrons in the wire is 8 xx 10^28//m^3 , then calculate the drift speed of the electrons in the wire (e = 1.6 xx 10^-19 C)

A copper wire of cross-sectional area 0.5 m m^(2) carries a current of 0.2A. If the free electron density of copper is 8.4xx10^(28)m^(-3) then compute the drift velocity of free electrons.

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.

The current in a metal wire of cross-sectional area 10^(-6)m^(2) is 1.6A .If the free electron density of the metal is 8times 10^(28)m^(-3) then the drift speed of electrons is

A copper wire of cross-sectional area 1 mm^2 carries a current of 0.21A Find the drift velocity of free electrons. Given density of free electrons in copper =8.84 times 10^(24)m^-3 and electronic charge e=1.6 times 10^-19 C .

A current of 1.8 A flows through a wire of cross-sectional area 0.5 mm^(2) ? Find the current density in the wire. If the number density of conduction electrons in the wire is 8.8 xx 10^(28) m^(-3) , find the drift speed of electrons.