Question

Fill in the blanks.
(a)-
and-
name of two device which use magnets.
(b)
and
are alloys which are magnetic.
(c) ... magnets retain their magnetism for a long time.
(d) An rod used as a core in an electromagnet produces a stronger magnet than wooden rod.​

Answer 1

Answer:

A) → Electromagnets are widely used as components of other electrical devices, such as motors, generators, electromechanical solenoids, relays, loudspeakers, hard disks, MRI machines, scientific instruments, and magnetic separation equipment.