#### 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 will be Option 1) Option 2) Option 3) Option 4)

As we learnt in

Temperature co-efficient of Resistivity -

- wherein

Where the value of  is different at different temperatures

Given :

Where     = resistance of a wire at

= resistance of a wire at , Temperature coefficient of resistance.

Divide (i) by (ii), we get

Option 1)

This option is incorrect.

Option 2)

This option is incorrect.

Option 3)

This option is incorrect.

Option 4)

This option is correct