A cylinder of a material is `10 cm` long and has a cross-section of `2 cm^2`. If its resistance along the length be `20 Omega`, what will be its resistivity in numbers and units ?

A cylinder of a material is 10 cm long and has a cross section of 2 cm^2 . If its resistance along the length be 20 ohm, what will be its resistivity in number and units?

A nichrome wire of length 100 cm and area of cross-section 0.5 m m^(2) has a resistance of 2.2 Omega . The resistivity of nichrome is

A negligible small current is passed through a wire of length 15 m and uniform cross section 6.0 xx 10^-7 m^2 and its resistance is measured to be 5.0 Omega . What is the resistivity of the material?

The resistance of the material of unit length and unit area of cross section is

A 1 m long metal wire has a cross sectional area of 0.1mm^2 . Find out the resistance of the wire if the resistivity of the metal is 1.8 times 10^-6 Omega.cm.

The length of a conducting wire is 50 cm and its radius is 0.5 mm. If its resistance is 30 Omega what is the resistivity of its material?

The length of a conducting wire is 50 cm and its radius is 0.5 mm. If its resistance is 40 Omega what is the resistivity of its material?

A wire of given material having length I and area of cross-section A has a resistance of 8Omega . What would be the resistance of another wire of the same material having length l/2 and area of cross-section 4A?