Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Electrical Foundations BC > D3- Magnetism > Flashcards

D3- Magnetism Flashcards

1
Q

What is the magnetomotive force?

A

Force that causes the setting up of flux lines:

F(m) = I (Amps) • N (# of coil turns)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is flux?

  • the symbol
  • the unit
  • the equation
A

Magnetic Flux is the total number of flux lines in a circuit

  • phi
  • webers (10^8 flux lines)
  • phi = Fm/ Rm or phi = Wb
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is reluctance?

A

Opposition if setting up flux lines in a magnetic circuit

Rm = Fm/ phi or A.turns/ Wb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is flux density?

A

Flux density is the amount of flux per unit cross section

B = ø / A or T = Wb/ m^2u

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Magnetizing force is

A

Magnetomotive force per unit length

H = Fm/ L or Am.t/m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Permeability is

A

The measure of ease with which flux may be set up in a unit length
mu = B/H
mu = Wb/am.t a meter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a Weber?

A

10^8 flux lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is B or tesla?

A

Flux density found with the magnetized force over an area
B = ø / A or
T = Wb/ m^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is a Henry?

A

The unit of magnetomotive force / L
H = Fm/ L
H = ampere turns / m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Mu

A

Measurement of permeability
B/ H
Wb / ampere turns per meter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is a Weber?

A

10^8 flux lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is B or tesla?

A

Flux density found with the magnetized force over an area
B = ø / A or
T = Wb/ m^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is a Weber?

A

10^8 flux lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is B or tesla?

A

Flux density found with the magnetized force over an area
B = ø / A or
T = Wb/ m^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is a Weber?

A

10^8 flux lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is B or tesla?

A

Flux density found with the magnetized force over an area
B = ø / A or
T = Wb/ m^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What is ampere turns?
The magnetomotive force | Amps x turns
26
What is a Weber?
10^8 flux lines
27
What is ampere turns / Wb?
Fm/ phi = reluctance
28
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
29
What is ampere turns?
The magnetomotive force | Amps x turns
30
What is a Weber?
10^8 flux lines
31
What is ampere turns / Wb?
Fm/ phi = reluctance
32
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
33
What is ampere turns?
The magnetomotive force | Amps x turns
34
What is a Weber?
10^8 flux lines
35
What is ampere turns / Wb?
Fm/ phi = reluctance
36
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
37
What is ampere turns?
The magnetomotive force | Amps x turns
38
What is a Weber?
10^8 flux lines
39
What is ampere turns / Wb?
Fm/ phi = reluctance
40
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
41
What is ampere turns?
The magnetomotive force | Amps x turns
42
What is a Weber?
10^8 flux lines
43
What is ampere turns / Wb?
Fm/ phi = reluctance
44
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
45
What is ampere turns?
The magnetomotive force | Amps x turns
46
What is a Weber?
10^8 flux lines
47
What is ampere turns / Wb?
Fm/ phi = reluctance
48
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
49
What is ampere turns?
The magnetomotive force | Amps x turns
50
What is a Weber?
10^8 flux lines
51
What is ampere turns / Wb?
Fm/ phi = reluctance
52
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
53
What is ampere turns?
The magnetomotive force | Amps x turns
54
What is a Weber?
10^8 flux lines
55
What is ampere turns / Wb?
Fm/ phi = reluctance
56
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
57
What is ampere turns?
The magnetomotive force | Amps x turns
58
What is a Weber?
10^8 flux lines
59
What is ampere turns / Wb?
Fm/ phi = reluctance
60
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
61
What is ampere turns?
The magnetomotive force | Amps x turns
62
What is a Weber?
10^8 flux lines
63
What is ampere turns / Wb?
Fm/ phi = reluctance
64
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
65
What is ampere turns?
The magnetomotive force | Amps x turns
66
What is a Weber?
10^8 flux lines
67
What is ampere turns / Wb?
Fm/ phi = reluctance
68
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
69
What is ampere turns?
The magnetomotive force | Amps x turns
70
What is a Weber?
10^8 flux lines
71
What is ampere turns / Wb?
Fm/ phi = reluctance
72
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
73
What is ampere turns?
The magnetomotive force | Amps x turns
74
What is a Weber?
10^8 flux lines
75
What is ampere turns / Wb?
Fm/ phi = reluctance
76
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
77
What is ampere turns?
The magnetomotive force | Amps x turns
78
What is a Weber?
10^8 flux lines
79
What is ampere turns / Wb?
Fm/ phi = reluctance
80
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2
81
What is ampere turns?
The magnetomotive force | Amps x turns
82
What is a Weber?
10^8 flux lines
83
What is ampere turns / Wb?
Fm/ phi = reluctance
84
What is B or tesla?
Flux density found with the magnetized force over an area B = ø / A or T = Wb/ m^2

Electrical Foundations BC (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions