A silver wire has a resistance of of `2.1 Omega` at `27..5^@C` and a resistance of `2.7 Omega` at `100^@C`. Find out the temperature coefficient of resistivity of silver.

A wire has a resistanceof 2 ohm at 273 K and a resistance of 2.5 ohm at 373 K. What is the temperature coefficient of resistance of the material ?

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 resistance of the conductor at O^@ C IS 1 ohm. Find the resistance at 100^@ C . Temperature coefficient of resistance is 0.004//0^@ C .

The resistance of a wire is 5 Omega at 50^@C and 6 Omega at 100^@C . The resistance of the wire at 0^@C will be

A wire has a resistance of 16 Omega . It is melted and drawn into a wire of half its length. What is the percentage change in its resistance?

Two coils connected in series have resistance of 600Omega and 300Omega at 20^@C and temperature coefficient of 0.001 and 0.004/^@C respectively. Find the resistance of the combination at a temperature of 50^@C . What is the effective temperature coefficient of the combination ?

A coil of wire is kept in melting ice . Its resistance measured by a Wheatstone bridge is 5Omega . If the coil is heated to 100^(@)C and another wire of resistance 100Omega is coonnected in parallel to it , the balanced condition of the brige remains unchaged . Determine the temperature coefficient of resistance of the wire of the coil .

With two resistances 2 Omega and 3 Omega In parallel a third resistance of 4 Omega is connected in series.Find their equivalent resistance.

The temperature coefficient of resistance of a metal is 0.004 ^@C^-1 . If a wire has resistance 1 Omega at 0^@C then what will be the value of that resistance at 100^@C ?

A cell of emf 1.4V and internal resistance 2 Omega is connected in series with a resistance of 100 Omega and an ammeter. The resistance of the ammeter is 4/3 Omega .To measure the potential difference between the two ends of the resistance a voltmeter is connected .Draw the circuit