Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

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
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
26
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
27
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
28
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
29
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
30
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
31
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
32
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
33
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
34
Q

What is a Weber?

A

10^8 flux lines

35
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

36
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

37
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

38
Q

What is a Weber?

A

10^8 flux lines

39
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

40
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

41
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

42
Q

What is a Weber?

A

10^8 flux lines

43
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

44
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

45
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

46
Q

What is a Weber?

A

10^8 flux lines

47
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

48
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

49
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

50
Q

What is a Weber?

A

10^8 flux lines

51
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

52
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

53
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

54
Q

What is a Weber?

A

10^8 flux lines

55
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

56
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

57
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

58
Q

What is a Weber?

A

10^8 flux lines

59
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

60
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

61
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

62
Q

What is a Weber?

A

10^8 flux lines

63
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

64
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

65
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

66
Q

What is a Weber?

A

10^8 flux lines

67
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

68
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

69
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

70
Q

What is a Weber?

A

10^8 flux lines

71
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

72
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

73
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

74
Q

What is a Weber?

A

10^8 flux lines

75
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

76
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

77
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

78
Q

What is a Weber?

A

10^8 flux lines

79
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

80
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

81
Q

What is ampere turns?

A

The magnetomotive force

Amps x turns

82
Q

What is a Weber?

A

10^8 flux lines

83
Q

What is ampere turns / Wb?

A

Fm/ phi = reluctance

84
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

Electrical Foundations BC (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions