Question

A Wire bound standard resistor uses manganin or constantan. It is because

(a) these alloys are cheap and easily available

(b) they have high resistivity

(c) they have low resistivity

(d) they have resistivity which almost remains unchanged with temerrature

Answer 1

(d) they have resistivity which almost remains unchanged with temerature

A wire bound standard resistor uses manganin or constantan because they have resistivity which is almost remaining unchanged with temperatue.