magnitism Flashcards
name 4 magnetic materials
iron , nickel, steel, cobalt
where are the magnetic field strogest
where the line ate closes together strigest at the poles
what are the 2 types of magnetis
permanents
induced
what are perminant magnets
create there own magnestic field
what are induced magnets
when out into a magnetic field withh becom magnetic but will loose it magnitcm if it is taken out
what happend if the direction of current throwing through a wired changes
It changes the direction of the electric field
What is a solenoid?
coil of a wire
how come the strength of a magnetic field that a wire produces being increased?
Wrapping wire into the solenoid
what is an electromagnet?
Solenoid with an ion called a magnet whose magnetic field can be turned on and off with an electric current
