Question
Question: Nichrome or Manganin is widely used in wire bound standard resistors because of their...
Nichrome or Manganin is widely used in wire bound standard resistors because of their
A
Temperature independent resistivity.
B
Very weak temperature dependent resistivity.
C
Strong dependence of resistivity with temperature.
D
Mechanical strength.
Answer
Very weak temperature dependent resistivity.
Explanation
Solution
: These materials exhibit a very weak dependence of resistivity on temperature. Their resistance values would be changed very little with temperature as shown in figure. hence these materials are widely used as heating element.
