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

A wire has a resistance of 10.5Omega at 21^@C and 16.4Omega at 147^@C . Find the value of temperature coefficient of resistance.

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

(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 wire has a resistance of 10.5 Omega at 21^@C and 16.4 Omega at 147^@C . Find the value of coefficient of resistance.

A platinum wire has a resistance of 2.62 Omega at 15 ^(0)C and 3.29 Omega at 80 ^(@)C . Find the temperature coefficient of the resistance of platinum wire.

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 platinum wire has a resistance of 10Omega at C30^(@) and 30 Omega in a hot furnace. Find the temperature of the hot furnace. Given prop=36xx10^(-4)c(-1)

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?