Brainscape's Knowledge GenomeTM

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


See full index

ECE 4C > ELECTRONICS > Flashcards

ELECTRONICS Flashcards

You may prefer our related Brainscape-certified flashcards:
Early Childhood Education flashcards
1
Q

It is the directional motion of electrons

A

Electric Current

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

It deals with stationary charged particles

A

Electrostatic

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

The effects of moving electrons

A

Magnetism

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

Magnetism due to electric current

A

Electromagnetism

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

what is the charge of the electron

A

-1.602x10^-19

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

what is the charge of proton

A

1.602x10^-19

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

what is the mass of the electron

A

9.109x10^-1

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

what is the mass of the proton

A

1.67x10^-27

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

what is the mass of the neutron

A

1.67x10^-27

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

who introduced the concept of electric field lines?

A

Michael Faraday

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

It deals with the phenomena due to attractions or repulsions of electric charges that are not moving

A

Electrostatics

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

It states that the force of attraction or repulsion between two charges is directly proportional to the value of each charge

A

Coulomb’s first law

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

it is the vector sum of two charges that exert forces on another charge

A

Principle of Superposition

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

the force that caused another particle to move

A

EMF

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

The total number of electric field lines passing a given area in a unit of time

A

Electric Flux Density

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

The electric lines in an electric field

A

Electric Flux

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

It is the amount of work needed to take a 1 coulomb charge from one point to another

A

Electric Potential Difference

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

materials with less than 4 valence electrons

A

conductors

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

materials with more than 4 valance electrons

A

Insulators

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

materials with exactly 4 valance electrons

A

semiconductor

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

materials that produce zero net magnetic force

A

Non-magnetic materials

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

a property of particles that causes them to experience a force when placed in an electric or magnetic field. It comes in two types: positive and negative.

A

electric charge

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

states that the force between two charges is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them

A

Coulomb’s law

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

a region around a charged object where other charges experience a force.

A

electric field

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

the opposition to the flow of electric current in a material

A

resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor

A

Ohm’s law

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

the rate at which electrical energy is transferred by an electric circuit.

A

Electric power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.

A

magnetic field

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

the process by which a changing magnetic field creates an electric current in a conductor.

A

electromagnetic induction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

states that the induced electromotive force (EMF) in any closed circuit is proportional to the rate of change of the magnetic flux through the circuit.

A

Faraday’s Law of Induction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

states that the direction of the induced current in a closed loop due to a changing magnetic field is such that it opposes the change in magnetic flux that produced it.

A

Lenz’s law

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

a coil of wire that generates a magnetic field when an electric current is passed through it.

A

solenoid

33
Q

it generates a magnetic field when an electric current passes through it. Its strength can be adjusted by changing the current or the number of coils.

A

electromagnet

34
Q

a device that changes the voltage of an alternating current (AC) by using electromagnetic induction between two or more coils of wire.

A

transformer

35
Q

refers to the total magnetic field passing through a given area. It is measured in weber (Wb).

A

Magnetic Flux

36
Q

the production of a voltage difference across an electrical conductor, transverse to the electric current and magnetic field applied, due to the Lorentz force acting on the moving charges.

A

Hall Effect

37
Q

The situation where any increase in the amount of magnetizing force will have very little magnetic effect

A

Saturation

38
Q

It is the intensity of the magnetic field that causes a material to become magnetised

A

Magnetic Field of Force

39
Q

what is present whenever a charge moves?

A

Magnetic Field (B)

40
Q

It is the ability to allow or set up a magnetic field

A

Permeability

40
Q

what is the unit for permeability

A

Henry/meter

40
Q

what happens to the magnetic flux when a magnetizing force is applied to a demagnetized ferromagnetic material

A

It rises

41
Q

This type of magnet exhibits permanent magnetism

A

Natural magnet

41
Q

this magnet is made of hard magnetic material

A

Permanent magnet (AlNiCo)

42
Q

It is the magnetic flux left after the magnetizing force reaches zero

A

remanence or residual magnetism

42
Q

The amount of force that can bring residual magnetism to zero

A

Coercive force

43
Q

the ability to retain magnetism when magnetizing force is removed

A

retentivity

44
Q

The lagging of the magnetization of a ferromagnetic material

A

Magnetic Hysteresis loop

45
Q

It is the ratio of the total flux (flux in the iron path) to the useful flux (flux in airgap)

A

Flux density

46
Q

Flux density is produced in it due to its own induced magnetism

A

Intensity magnetization

47
Q

Non-metallic material that has ferromagnetic properties of iron

A

Ferrites

48
Q

What is the opposition to the flow of current in an electric circuit?

A

resistance

49
Q

What is the power wasted since the resultant heat is not used?

A

Dissipation

50
Q

Resistors with ____ resistance value have lower voltage ratings since they have less current

A

high

51
Q

These are element which produces a signal relating to the quantity being measured?

A

SENSORS

52
Q

These are devices which provide output with respect to the specific physical quantity

A

SENSORS

53
Q

What are the parts of a SENSOR?

A
  1. Sensing element
  2. Conduction of signals and processing
  3. Sensor interface
54
Q

This type of sensor requires an external excitation or a power signal?

A

Active Sensor

55
Q

This sensor does not require external power signal and directly generates output response?

A

Passive Sensor

56
Q

This sensor produces analog output?

A

Analog sensor

57
Q

This sensor work with discrete or digital data?

A

Digital sensor

58
Q

These sensors measure changes in temperature and are widely used in thermostats, refrigerators, and industrial processes.

A

Temperature sensors

59
Q

This specific type of temperature sensor measure temperature by detecting the voltage difference between two dissimilar metals?

A

Thermocouples

60
Q

This type of specific temperature sensor are known for their high accuracy and wide temperature?

A

Thermocouples

61
Q

This type of temperature sensor utilize a material whose resistance changes significantly with temperature?

A

Thermistors

62
Q

Thermistors are commonly used in _____ and _____ applications

A

automotive and medical devices

63
Q

This sensor measures temperature by detecting changes in resistance.

A

Resistance Temperature Detectors (RTD)

64
Q

These sensors measure changes in pressure and are commonly used in industrial processes, automotive applications, and medical equipment.

A

Pressure sensors

65
Q

This sensor utilize a material whose resistance changes with pressure.

A

Piezoresistive sensors

66
Q

This sensors measures pressure by detecting changes in capacitance.

A

Capacitive sensors

67
Q

This sensor generate a voltage when subjected to pressure.

A

Piezoelectric sensor

68
Q

These sensors measure changes in light intensity and are commonly used in cameras, automatic lighting systems and solar panels.

A

Light sensors

69
Q

These sensors convert light into electrical current.

A

photodiodes

70
Q

These sensors amplify the current generated by light

A

Phototransistors

71
Q

this sensor exhibit a change in resistance based on light intensity.

A

Photoresistors

72
Q

These sensors detect the presence of objects without physical contact. They are specifically used in robotics, automotive and security systems.

A

Proximity sensors

73
Q

This sensor detect object by measuring capacitance.

A

Capacitive sensors

74
Q

This sensor detect objects by measuring changes in inductance.

A

Inductive sensor

75
Q

This sensor emits sound waves and measure the time it takes for the waves to reflect back from an object

A

Ultasonicsenosr

ECE 4C (5 decks)

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