Topic 6 Flashcards
A device that converts mechanical energy to electric energy is called an _______ _________.
Electric Generator
Who were the 2 people who discovered a relation between electricity and magnetism?
Oersted and ampere
What is an electromagnet
A type of magnet which uses electric current to generate the magnetic field.
what are 2 ways to Increase an electromagnet’s strength?
1.Wrapping more wire around the core.
2.Increasing amount of current flow.
Who discovered the basic principles of electromagnetism?
Michael Faraday
What is a device that converts mechanical energy to electric energy called?
Generator
What does AC and DC stand for?
Alternating & Direct current
Do AC generators have split ring commutators?
No
Do DC generators have split ring commutators?
Yes
Name 4 parts that electric generators and motors use.
Commutator, Armature, Magnets and Brushes
Electric motors use coils of wire and magnets to create __________ _______.
Mechanical Energy
How does DC current flow ?
DC current flows in one direction so the magnitude is constant.
How does AC current flow ?
AC current flows in alternating directions.
