Ch 4 2/2 Flashcards
0
Q
Voltmeter
A
Measure voltage in a series
1
Q
Thermionic emission
A
Boiling of electrons from a surface
2
Q
Motor
A
Produce mechanical motion with electrical curent
3
Q
Rotor
A
Bars of copper around iron core
4
Q
Permeability
A
Ease with-which material can be magnetizes
5
Q
Magnetic field
A
Magnetic dipoles oriented create magnet
6
Q
Rectification
A
AC changed to DC
7
Q
Tesla (T)
A
Unit for Flux density
8
Q
Retentivity
A
Ability for material to stay magnetized
9
Q
Stator
A
Stationary magnets around the rotor
10
Q
Transformer
A
2 coils near each other without electrical connection
11
Q
Magnet
A
Object exhibiting strong uniform magnetic field
12
Q
Magnetic dipoles
A
of electrons with magnetic momentum in same direction
13
Q
Magnetic domain
A
Atoms with Net magnetic field
14
Q
Magnetic field
A
Created when dipoles orient
