Magnetism
A circuit with two or more paths for electrons.
What is parallel?
Current in one direction
What is DC (direct current)?
This is the unit for current.
What is an ampere?
A magnet made of iron or steel inside a current-carrying wire.
What is an electromagnet?
Current that changes direction
What is AC?
True or False: A magnet can have just one pole.
What is false?
This creates an electric charge when close to, but not touching, a charged object
What is induction?
An electromagnet must be part of an electrical ______.
What is circuit?
If we turn off the current in the wire of an electromagnet, this happens to the magnetic field.
What is disappear?