If 10m long manganin Wire,0.13 cm in diameter has a resistance of 3.4 ohms,what is the conductivity of the material?

A wire of length 1 m and radius 0.1mm has a resistance of 100(Omega) .Find the resistivity of the material .

A 1m long wire of diameter 0.31mm has a resistance of 4.2 Omega . If it is replaced by another wire of same material of length 1.5m and diameter 0.155 mm , then the resistance of wire is

A rod of certain metal is 1.0 m long and 0.6 cm in diameter. Its resistance is 3.0 xx 10&(-3) ohm. Another disc made of the same metal is 2.0 cm in diameter and 1.0 mm thick. What is the resistance between the round faces of the disc?

A 0.1 M solution of monobasic acid at specific resistance of r ohms-cm, its molar conductivity is

A 10m long potentiometer wire has a resistance of 20 ohm. It is connected in series with a battery of emf 3V and a resistance of 10Omega . The internal resistance of cell is negligible. If he length can be read accurately up 10 1mm, the potentiometer can read voltage.

The current density in a wire is 10A//cm^(2) and the electric field in the wire is 5 V/cm. If p = resistivity of material, sigma = conductivity of the material then (in SI unit)

Resistance of a metal wire of length 1 m is 26 Omega at 20^@ C . If the diameter of the wire is 0.3 mm , what will be the resistivity of the metal at that temperature ? .

A 20 m long potentiometer wire has a resistance of 20 Ohm. It is connected in series with a battery of emf 3V and resistance of 10 Omega . The internal resistance of cell is negligible. If the lenth can be read accurately up to 1 mm, the potentiometer can read voltage:

A conductivity cell has a cell constant of 0.5 cm^(-1) . This cell when filled with 0.01 M NaCl solution has a resistance of 384 ohms at 25^(@)C . Calculate the equivalent conductance of the given solution.

A circular ring made of copper wire of 0.1 mm diameter and 60 cm long is connected as shown in Fig. 26.1. Find the resistance of the circuit. What should the length of the shorter section AB = x be for the resistance of the circuit to be 0.2 ohm?