The resistance of a wire at `0^(@)`C and `100^(@)`C is `5.2Omega` and `7.85Omega`, respectively. Calcualte the mean temperature coefficient of resistance of the material of the wire.

Resistance of a material at 10^(@)C and 40^(@)C are 45Omega and 85Omega respectively. Find its temperature co-efficient of resistance

If the resistance of a conductor is 5 Omega at 50^(@)C and 7Omega at 100^(@)C then the mean temperature coefficient of resistance of the material is

If the resistance of a conductor is 5 Omega at 50^(@)C and 7Omega at 100^(@)C then the mean temperature coefficient of resistance of the material is

A wire has resistance of 2.0 Omega at 25^@ C and 2.5 Omega at 100^@ C . Calculate the temperature coefficient of resistance of the wire.

A conductor has resistance of 5 Omega at 60^@C and 6 Omega at 100 ^@C . Find (i) the mean temperatures coefficient of resistance of the material of conductor and (ii) resistance at 0^@C .

The resistance of a tungsten wire is 1000 Omega at 0^@C and 1045 Omega at 10^@C . Calculate the temperature coefficient of resistance of tungsten.

The resistance of a copper wire at 20^@C is 3 Omega and at 100^@ is 3.94 Omega .Determine the temperature coefficient of resistance of copper.

The resistivity of a wire at 20^circ C and 100^circ C is 3 Omega-m and 4 Omega-m respectively. The resistivity of the wire at 0^circ C is