Electromagnets

Question 1

How are electromagnets made?

Answer 1

By wrapping a coil of wire around a magnetic core.

Question 2

How do electromagnets work?

Answer 2

When electricity is flowing through the coil.

Question 3

Which is stronger, Electromagnets or Permanent Magnets?

Answer 3

Electromagnets.

Question 4

An electromagnet has the same magnetic field shape as a…….

Answer 4

Bar Magnet.

Question 5

How can you increase the strength of an electromagnet?

Answer 5

1. Increasing the number of turns on the coil around the
   core of the electromagnet.
2. Increasing the current which is flowing through the coil
   of wire.
3. Using a more magnetic material for the core.