The resistance of iron and copper wires at `20^@C` are `4.1Omega` and `4.3Omega` respectively. At what temperature will the resistance be equal ? Temperature coefficient of resistance for iron is `5.0xx10^(-3)K^(-1)` and for copper is `4.0xx10^(-3) K^(-1)`. Neglect any thermal expansion.

The resistances of an iron wire and a copper wire at 20^(@)C are 3.9(Omega) and 4.1(Omega) respectively. At what temperature will the resistances be equal?Temperature coefficient of resistivity for iron is 5.0xx10^(-3)K^(-1) and for copper it is 4.0xx10^(-3)k^(-1). Neglect any thermal expansion.

The resistances of an iron wire and a copper wire at 20^(@)C are 3.9(Omega) and 4.1(Omega) respectively. At what temperature will the resistances be equal?Temperature coefficient of resistivity for iron is 5.0xx10^(-3)K^(-1) and for copper it is 4.0xx10^(-3)k^(-1). Neglect any thermal expansion.

The resistances of an iron wire and a copper wire at 20^(@)C are 3.9(Omega) and 4.1(Omega) respectively. At what temperature will the resistances be equal?Temperature coefficient of resistivity for iron is 5.0xx10^(-3)K^(-1) and for copper it is 4.0xx10^(-3)k^(-1). Neglect any thermal expansion.

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 rwo wires A and B at 20^@C are 3 Omega and 4 Omega respectively. At what temperature will the resistance be equal ? alpha_(A) = 6 xx 10^-3 K^(-1), alpha_(B) = 2 xx 10^-3 K^-1 . Neglect any thermal expansion.

At what temperature will the resistance of a copper wire become three times its value at 0^(@)C (Temperature coefficient of resistance for copper = 4 xx 10^(-3) per C)

At what temperature the resistance of a copper wire will become three times its value at 0^@C ? Temperature coefficient of resistance for copper 4xx10^(-3)//C

At what temperature will the resistannce of a copper wire become three times its value at 0^(@)C (Temperature coefficient of resistance for copper =4xx10^(-3)"per".^(@)C :-