Temporary Magnet with a magnetic field produced by electric current
Electromagnetic
A temporary magnet with a magnetic field produced by an electric current
Electromagnet
Magnitude
the size of the quantity of something
As the distance between magnets increases, the attraction between them will –______________
Decrease
"jumping" energy levels even produce the light you see
Electrons
Consists of a coil wire wrapped around an iron core, such as a large nail with ends attached to a battery w tape
Electromagnet
Current
What will happen as an electron (-) gets closer to a proton (+)?
The attraction will be stronger
Electromagnetic force
When the current is on, the magnetic force _________
appears
Attractive
Having the tendency to pull other objects toward itself
What affects the strength of an electrical field?
The quantity of the charge
Electric pressure is also known as this
Voltage
If the electric charges stop moving, the current is off, and thus the magnetic property ___________
Vanishes
Repulsive
Having a tendency to push other objects away from itself
What will happen if the north ends of two magnets are placed near each other?
They repulse/repel each other
Electric charges have to flow as a _____________ before a magnetic field is produced.
Current
Electric charges need to flow to produce an
_________ __________ which creates the magnetic field
Electric current
Magnetic Field
The area around a magnet or moving electrical charge that can exert a magnetic force
How can the strength of an electromagnet increase?
Add more loops (coils) of wire from around the core.