Electromagnetism

What happens to the voltage when the magnet moves through the 3 coils of wire vs. the 2 coils of wire?

• It stays the same.

• it increases.

• it decreases.

• it reverses polarity.

Does the magnet have to physically enter the coils to get a response?

• Yes, at least half way.

• Yes, the magnet needs to move all the way through the coil to get a response.

• No, the field lines are sufficient to create a voltage.

• No, the magnet has nothing to do with generating a voltage.

Why does the magnet create electric current when it interacts with the wire?

• Because it's magic!

• Magnetism and electricity are related.

• The magnet stores electricity, which it then transmits to the wire.

• The movement of the magnet induces a current in the wire.

What would happen to the charge if the wire were increased to 6 coils from the original 3.

• Nothing would change.

• The current produced would be 1/6th of the original current.

• The induced current would be twice as strong as the original current.

• The current would stay at the same level.

What do we call a device that converts magnetism into electric current?

• A motor.

• A generator.

• An alternator.

• Magic!

A motor is...

• A device that converts magnetism into electricity.

• A device that converts light into electricity.

• A device that converts electricity into magnetism.

• A device that converts regular magnets into electromagnets.