9. Give three points of of difference between electromagnet and permanent magnet
Answers
Answered by
0
Answer:
A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through it.
Explanation:
Answered by
0
Answer:
A permanent magnet is an object made from a material that is magnetized and creates its own persistent magnetic field. ... An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through
Similar questions