A wire has a resistance of `6 Omega` at `30^@C` and `6.5 Omega` at `100^@C`. Determine the temperature co-efficient of resistance of the wire. What will be resistance of a wire at 0∘C?

A silver wire has a resistance of 4.2 Omega at 27^@C and resistance 5.4 Omega at 100^@C . Determine the temperature coefficient of resistance.

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.

A thick wire has a low resistance.

The resistance of a copper wire is 20 Omega at 0^@C . Find the resistance at 60^@C if the temperature coefficient of resistance of material is 0.004//^@C .

A piece of platinum wire has resistance of 2.5 Omega 0^@C . If its temperature coefficient of resistance is 4 xx 10^-3//^@C . Find the resistance of the wire at 80^@C .

Resistors having resistances of 8 Omega , 6 Omega and 12 Omega are connected in parallel. What is the effective resistance in the circuit?

A resistance thermometer has resistance 95.2 Omega at the ice point and 138.6 Omega at the steam point. What resistance would be obtained if the actual temperature is 27^@ C ?

Choose correct alternative. When two resistances are connected in parallel then the equivalent resistance is 6//5 Omega . When one of the resistances is removed then the effective resistance is 2 Omega . The resistance of the wire removed will be A. 3 Ω B. 2 Ω C. 3 / 5 Ω D. 6 / 5 Ω