Question

Constanton wire is used for making standard resistance because it has:

• A. low specefic resistance .
• B. high specefic resistance .
• C. negligible temperature coefficient of resistance.
• D. high melting point.

Answer 1

The correct option is C negligible temperature coefficient of resistance.

Constanton wire is are used to make standard resistors because

1) they have high value of resistivity.

2) temperature coefficient of resistance is negligible

3) they are least affected by temperature