WRITE TWO CHARACTERISTICS OF MANGANIN WHICH MAKES IT SUITABLE FOR MAKING STANDARD RESISTANCES.

The two important characteristics of manganin alloy that is useful in making standard resistance coils are:

  1. Manganin has a constant electrical resistance over a wide range of temperature that is a small value of temperature coefficients α and β . This makes it have same resistance even if resistance is heated up.

 2. Manganin has a high resistivity.

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 They are used to make standard resistors because 1)they have high value of resistivity.2)temperature cofficient of resistance is less.3)they are least affected by temperature.

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