A silver wire has a temperature coefficient of resistivity `4 xx 10^(-3) .^@C^(-1)` and its resistance at `20^@ C` is `10^@` Neglecting any change in dimensions due to the change in temperature , its resistance at `40^@C` is

A silver wire has a temperature coefficient of resistivity 4 xx 10^(-3) .^@C^(-1) and its resistance at 20^@ C is 10Omega Neglecting any change in dimensions due to the change in temperature , its resistance at 40^@C is

A silver wire (of temperature coefficient of resistance 0.0375) has a resistance of 5 ohm at 100^@C . Find the resistance at 500^@C .

The resistance of a wire of iron is 10 ohm and temperature coefficient of resistivity is 5 xx 10^-3//.^@C , At 20^@C it carries 30 mA of current. Keeping constant potential difference between its ends. The temperature of the wire is raised to 120^@C . The current in mA that flows in the wire now is.

The resistance of a wire of iron is 10 ohm and temperature coefficient of resistivity is 5 xx 10^-3//.^@C , At 20^@C it carries 30 mA of current. Keeping constant potential difference between its ends. The temperature of the wire is raised to 120^@C . The current in mA that flows in the wire now is.

The coefficient of linear equation of copper is 17times10^-6//^@C and its temperature coefficient of resistance is 42.5times 10^(-4^@)C^-1 . IF the resistivity of copper at 0^@C be 1.55 times 10^-6 Omega cm. then what will be its resistivity at 100^@C ?

The resistance of a wire at 20^(@)C is 20Omega and at 500^(@)C is 60Omega . At which temperature its resistance will be 25Omega ?