A conductive wire has resistance of 10 ohm at `0^@C` and `alpha is 1/273^@C`, then determine its resistance at `273^@C`

If the resistance of coil is 3Omega at 20^(@)C and alpha=0.004//^(@)C then determine its resistance t 100^(@)C .

The resistance of a conductor is 5 ohm at 50^@C and 6 ohm at 100^@C . Its resistance at 0^@C is

A plantinum wire has resistance of 10 Omega at 0^(@)C and 20 Omega at 273^(@)C . Find the value of coefficient of resistance.

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

(i) A potential difference of 200 volt is applied to a coil at a temperature of 15^(@)C and the current is 10 A. What will be the temperature of the coil when the current has fallen to 9 A, the applid voltage being the same as before ? Temperature coefficient of resistance (alpha)=1/(234).^(underline(o))C^(-1) . (ii) A platinum wire has resistance of 10 ohm at 0^(@)C and 20 ohm at 273^(@)C . Find the value of temperature coefficient of resistance.

A sliver wire has a resistance of 2.1 ohm at 27.5^@C , and a resistance of 2.7 Omega at 100. Determine the temperature coefficient of resistivity of silver.

A metallic wire has a resistance of 3.0 Omega at 0^@C and 4.8 Omega at 150^@C . Find the temperature coefficient of resistance of its material.

A piece of copper wire has a resistance of 25 Omega at 10^(@)C . What is the maximum operating temperature, if the resistance of the wire is to be increased by 20 % ? (Assume alpha at 10^(@)C=0.0041// .^(@)C^(-1) ).

A platinum wire has a resistance of 10Omega at 0^@C and 20Omega at 273^@C. find the value of temperaure cofficient of platinum.