Midterm 3 Flashcards
1
Q
Fundamental principle behind DC generation
A
ELECTROMAGNETIC INDUCTION
2
Q
Law that describes how a changing magnetic field can induce EMF in a conductor
A
FARADAY’s LAW
3
Q
A principle in electromagnetism—
Describes, which way the induced current will flow
A
Lenz’s Law
4
Q
In Flemings’s right hand rule
A
Thumb: motion
Pointy: Field
Bad F: current
5
Q
2 key aspects to Faraday’s Law
A
- Magnitude of Induced EMF (
- Direction of Induced EMF (Pointy into the page)
6
Q
Main components of DC GENERATOR
A
- Shaft
- Sealed ball bearings
- Armature/ rotor
- Brush
- Commutators thinker bell thing
- Yoke
- Pole shoe
- Field windings / coils
