In a conductor current flowing is 1A and its length is 1m, resistivity is `1.7 x 10^-8 Omega m` and area cross section is `2mm^2`. Find force on one electron

A current of 5 A passss through a copper conductor (resistivity = 1.7 xx 10^(-8) Omega m ) of radius of cross -section 5mm. Find the mobility of the charges if their drift velocity is 1.1 xx 10^(-3) m//s .

In conducting wire of radius 5mm , resistivity p-1.1xx10^(-8)Omega//m and current of 5A is flowing. Drift velocity of free electron is 1.1xx10^(-3)m//s find out mobility of free elctron.

In a metal conductor 0.1 A current is following. The cross sectional area is 5 mm^2 . Drift velocity is given to be 2 xx 10^-3 m/s. Find free electron density

If the current in the primary circuit of a potentiometer wire of specific resistance is 40 xx 10^(-8)Omega -m and area of cross-section 8 xx 10^(-6)m^(2) is 0.5 amp. Then potential gradient of wire is –

Resistivity of the material of a conductor of uniform cross-section varies along its length as rho=rho_(0)(1+alpha x) . Find its resistance if its length is L and area of cross-section is A.

Resistance of a conductor of length l and area of cross-section A is R. If its length is doubled and area of cross-section is halved, then find its new resistance.

The number density of electron in copper is 8.5 xx10^(28)m^(-3) . Find the current flowing through a copper wire of length 20 cm, area of cross section is 1 mm square,when connected to a battery of 3 V. Given the electron mobility =4.5xx10^(-6)m^(2)V^(-1) s^(-1) and electron charge =1.6 xx 10^(-19)C .

A conductor has a cross-section of 15 mm^(2) and resistivity of 7.6 xx 10^(-8)Omega m at 0^@C . If the temperature coefficient of resistance of the material of the conductor is 5 xx 10^(-3).^(@)C^(-1) , calculate its resistance for 2 km length of conductor when its temperature is 60^@C .