Find the resistance of a nichrome wire of length 1m and area of cross-section `4mm^(2)`.
`rho(nichrome)=`100xx10^(-6)Ohm-m`.

Find the resistance of a nichrome wire of length 2m and area of cross-section 2mm^(2) rho_(nichrome)=100xx10^-6Ohm-m .

Find the resistance of a nichrome wire of length 1m and area of cross-section 2mm^(2) .The resistivity of nichrome of nichrome is 100xx10^(-6)Ohm-m .

Find the resistance of an ebonite rod of length 1m and area of cross section 2mm^(2) .The resistance of ebonite = 10^(16)Ohm-m .

Find the resistance of a copper wire of length 1m and area of cross-section 2mm ^(2) .The specific resistance of copper= 1.7xx10^(-8)Ohm-m .

A wire carries a current of 1.2 A when a potential difference of 1.8 V is applied across it. What is its conductance? If the wire is of length 3 m and area of cross-section 5.4 xx 10^-6 m^2 calculate its conductivity.

Calculate the conductivity of a wire of length 200 cm, area of cross-section 2cm^2 and of resistane 5xx10^4Omega .

What is the drift velocity of electrons in a silver wire of length 1 m, area of cross-section 3.14 xx 10^-6m^2 and carrying a current of 10 A. Given, charge on electron = 1.6 xx 10^-19C , Avogadro number = 6.02 xx 10^23 atomic weight of silver = 108 and density of silver = 10.5 xx 10^3 kg m^-3 .

The resistivity of potentiometer wire is 10^-7 ohm m and its area of cross-section is 10^-6m^2 . When a current I = 0.1. A flows through the wire, its potential gradient is

Calculate the electrical conductivity of the material of a conductor of length 3m, area of cross section 0.2 mm^2 having a resistance of 2 ohm.