Permanent magnets are generally made of iron, steel, cobalt, nickel, or an alloy called__________.
Thus, Permanent magnets are generally made of iron, steel, cobalt, nickel, or an alloy called ALNICO.
Which of the following is not a magnetic material?(a) gold(b) nickel(c) iron(d) cobalt
What are the constituents of an alloy called “Nickel steel”?