Magnets, Magnetic Fields, Electromagnets, Circuits Flashcards
What is their in a electric field?
In an electric field there is a force on a charge
What is their is in a magnetic field?
In a magnetic field their is a force on a magnet or magnetic material
How can you find the shape of a magnetic field?
Using plotting compasses or iron filings
A wire with a electric current flowing through it has what?
A Magnetic field
How can you turn an electromagnet on and off?
By turning the current on and off
What do the same poles do?
The same poles repel each other
What do opposite poles do?
They attract
Whats the difference between normal magnets and electromagnets?
An electromagnet can be turned on and off
What are the main three magnetic metals?
Cobalt
Iron
Nickel
Series Circuit?
A series circuit has everything in one loop
Whats a Current
The movement of electrical charges
Whats Potential Difference
A measure of the electrical current in a circuit
What special about the current on a series circuit?
No matter where you measure its always the same
Whats Special about the current on a parallel circuit?
The current splits evenly with the amount meters you have (ammeters, voltmeters etc)
What are the two types of circuits?
Series and parallel
