1745Mechanical EngineeringMedium
Perminvar alloy having constant permeability is an alloy of________?
Airon, zinc and bismuth
Bcopper, nickel and antimony
Cnickel, copper and iron
Dnickel, copper and zinc
Eantimony, copper and zinc
Correct answer
C. nickel, copper and iron
Explanation
The correct answer is nickel, copper and iron.