A copper wire of diameter `0.65mm` carries current of `2.3` `mu` `A` ,then

drift speed of electron is `5.1times10^(-10)``m/s`

drift speed of electron is `5.1times10^(-4)``m/s`

the electric field in wire is `1.2times10^(-7)``V/m`

the electric field in wire is `1.2times10^(-8)``V/m`

A wire of 5.8 m long, 2 mm diameter carries 750 mA current when 22 mV potential difference is applied at its ends. If drift speed of electrons is found 1.7 xx 10^(-5) m/s then

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

Drift speed of electrons is of the order of 10^(-3) m/s , but current is established in the circuit with the speed of light . Explain .

A potential difference of 5V is applied across a conductor of length 10 cm. IF drift of electron is 2.5 xx 10^(-4) m//s , then electron mobility in SI unit is

Drift speed of electrons is of the order of 10^(-3) m//s , but current is established in the circuit with the speed of light . Explain.

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) .)

A conductor wire having 10^29 free electrons / m^3 carries a current of 20A. If the cross-section of the wire is 1mm^2 , then the drift velocity of electrons will be :

A small insect crawls in the direction of electron drift along bare copper wire that carries a current of 2.56A. It travels with the drift speed of the electron in the wire of uniform cross-section area 1mm^2 Number of free electrons for copper = 8 times 10^28// cc and resistivity of copper = 1.6 times 10^-8 Omega m How much time would the insect take to crawl 1.0 cm if it crawls at the drift speed of the electron in the wire?

When 5 V potential difference is applied across a wire of length 0.1 m, the drift speed of electrons is 2.5 xx 10^(-4) ms ^(-1) . If the electron density in the wire is 8 xx 10^(28) m^(-3) , the resistivity of the material is close 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.)