Electromagnetic Induction Flashcards
What is the name of a magnet that produces its own magnetic field all the time?
Permanent magnet
What are common magnetic elements/alloys?
Nickel, cobalt, iron, steel
How are induced magnets made?
By putting a magnetic material like nickel into the magnetic field of a permanent magnet
What materials are magnetically soft?
Iron and nickel
What does it mean if somethings magnetically soft?
They lose their magnetism quickly
Is steel magnetically soft or hard?
Hard it loses its magnetism more slowly
What is a magnetic material?
A material that can be influenced by a magnetic field and has the potential to become a magnet
What will the force between a permanent and induced magnet be like?
It will always be attractive
What is a solenoid?
A coil of wire with a bar magnet in
How can you induce a bigger potential difference in a coil of wire during electromagnetic induction?
Adding more turns of wire, moving the wire or magnet quicker
