How is an electromagnet different from a bar magnet?

Question 3 options:

a. Only a bar magnet has a magnetic field.

b. Only an electromagnet attracts materials made of iron.

c. An electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.

d. A bar magnet is a temporary and is only magnetic when a current flows through a wire wrapped around the core.

Question

Physics

Veronica Beard

10 March, 15:48

How is an electromagnet different from a bar magnet?

Question 3 options:

a. Only a bar magnet has a magnetic field.

b. Only an electromagnet attracts materials made of iron.

c. An electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.

d. A bar magnet is a temporary and is only magnetic when a current flows through a wire wrapped around the core.

+2

Answers (1)

Know the Answer?

Fatima Brown · Answer 1

I believe the correct answer would be that an electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core. An electromagnet is made from coils of wires that is magnetized when current is passed through the wires. Bar magnets are permanent magnets.