Define mobility of free electrons. A potential difference of 5 volts is applied across a conductor of length 10 cm Find the mobility of an electron if he drift velocity of an electron is` 2.5xx10^-2` cms.

A potential difference of 5 V is applied across a conductor of length 10 cm. If drift velocity of electrons is 0.00025 m/s, then what is the electron mobility?

IF potential differences V applied across a conductor is increased to 2V,how will the drift velocity of electrons change?

5V potential difference is applied to a conductor of Length 10cm.If the drift velocity be 2.5 xx10^-2cm/s , then what will be its mobility?

Calculate the wavelength of an electron moving with a velocity of 2.05xx10^(7)m*s^(-1) .

Calculate the wavelength associated with an electron moving with a velocity of 10^10 cm/sec.

When 5V potential difference is applied across a wire of length 0.1 m, the drift speed of electron a 2.5 times 10^-4m//s IF the electron density in the wire is 8 times 10^28 m^-3 , the resistivity of the material of wire.

When 5V potential difference is applied across a wire of length 0.1 m, the drift speed of electron a 2.5 times 10^-4 m.s^-1 . IF the electron density in the wire is 8 times 10^28 m^-3 , the resistivity of the material is close to

If a current passes through a metal conducting wire of area of cross section A, the drift velocity of free electrons inside the metal is v_d=1/( n e A) , where the amount of electric charge of an electron =e and the number of free electrons per unit volume of the metal=n. The applied electric field on the wire is E=V/l , where a potential difference V exists between two points, l apart, along the length of the wire. IF R is the resistance of the wire between those two points, then the resistivity of its material is rho=(RA)/l .Besides the mobility (mu) of the free electrons inside a wire is defined as their drift velocity for a unit applied electric field. The radii of two wires of the same metal are in the ratio 1:2 The same potential difference is applied between two points at a distance l on each of the wires.The ratio between the drift velocities of the free electrons in two wires is

Two conducting wires X and Y of same diameter but different materials are joined in series across a battery. If the number density of electrons in X is twice that in Y, find the ratio of drift velocity of electrons in the two wires.