Identify those methods which produce a permanent magnet

Question

Identify those methods which produce a permanent magnet

Answer 1

take a piece of iron or other ferromagnetic material, and touch it to another permanent magnet, or to an electromagnet

Wind a coil of wire around it and power it up

align it with the north pole and tap it with a hammer, repeatedly

.

Answer 2

A piece of iron can be induced into becoming a magnet by stroking it in one direction with the pole of a permanent magnet.