Magnetism & Electromagnetism Flashcards
1
Q
What is a magnetic field?
A
Created around permanent magnets
2
Q
What is an electromagnet?
A
Electric current which produces a magnetic field
3
Q
What do solenoids and relays do?
A
Use electromagnets to switch electrical currents
4
Q
What are the three main types of motors used in aircraft?
A
Series-Wound Motors; High starting torque
Parallel/ Shunt-Wound Motors: Constant speed; low torque
Combination-Wound Generators: Maintains voltage at different loads
5
Q
What does a Commutator & Brushes do in DC motors?
A
Commutator & Brushes control current flow in DC motors.
6
Q
What does a Busbar do in an aircraft?
A
Busbars distribute power across aircraft
