Electromagnet
Uses for electromagnets
What is a electromagnet, A electromagnet can be used for Hard drive disks, Scrap metal sorting, and MRI machines.
What is a Electric generator?
An electric current that can be created with a magnet.
What is the positive part of the pole and what is negative part of the poles
Negative pole is north, Positive pole is south.
Magnetic field lines are drawn with?
Arrows
What does the Electric motor convert to?
converts electrical energy to mechanical energy.
The combination of electricity and magnetism is?
Electromagneitism
What are some electric generators
Power station, Roadway vehicles, Bicycles, sailboats, and electric scooters.
Earth has a magnetic field also called?
Magnetosphere
Magnetic Field line cross or never cross?
Never cross
What are electric motors used for?
Vehicles, power tools, and Medical devices.
How is the electromagnet made.
A wire is connected to a battery. The wire is wrapped around a magnetic object such as a nail.
The steam spins large fans called?
Turbines
If you hold a magnet to a can will the can be picked up?
No because the can is not magnetic.
What detects Earths magnetic field?
A Compass
What is the power source for a Electric motor?
direct current , like from a battery, or alternating current, which comes from a power grid or generator.
What does the strength of the electromagnet depend on.
The Voltage produced by the power source.
what is the importance of a electric generator?
The electricity we use is created by massive electric generators at a power plant. At power plants fossil fuels are burned to heat water.
What are the different types of magnets?
permanent magnets, electromagnets, and temporary magnets.
Earths magnetic field creates a?
Protective sphere.
How long do electric motors last?
30,000 to 40,000 hours
How can you make an electromagnet stronger?
Increasing the number of times a wire is wrapped around a magnetic object will produce a stronger electromagnet.
How does the Electric generator work?
A loop of wire is placed within a magnet. The loop of wire is connected to a rotating shaft.
What is the most powerful magnet?
32 Tesla superconducting magnet.
To produce a magnetic field around a copper wire you have to?
run electrical through it.
What are the three main parts of a electric motor
a stator, commutator, and a rotor