Nichrome or Manganin is widely used in wire bound standard resistors because of their

Question

Nichrome or Manganin is widely used in wire bound standard resistors because of their (A) temperature independent resistivity (B) very weakly temperature dependent resistivity (C) strong dependence of resistivity with temperature (D) mechanical strength

Tardigrade Admin · Accepted Answer

Temperature coefficient of resistance of alloys have small values. Hence, resistivity of alloys depends weakly on temperature. Nichrome and manganin both are alloys and their resistivity depends weakly on temperature. Hence, they are used in wire bound standard resistors.

Q. Nichrome or Manganin is widely used in wire bound standard resistors because of their

temperature independent resistivity

very weakly temperature dependent resistivity

strong dependence of resistivity with temperature

mechanical strength

Temperature coefficient of resistance of alloys have small values. Hence, resistivity of alloys depends weakly on temperature. Nichrome and manganin both are alloys and their resistivity depends weakly on temperature. Hence, they are used in wire bound standard resistors.