Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Basic Electricity & Applied Mathematics > Final Prep > Flashcards

Final Prep Flashcards

1
Q

What is electricity?

A

The flow of electrons.

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

Define Flux

A

Lines of magnetic force.

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

What type of current is produced by an armature cutting lines of magnetic flux?

A

AC

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

Resistance Rule in Parallel Circuits

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

What is the negative electrode in a battery called?

A

Cathode

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

What are the two types of Batteries?

A

Primary & Secondary

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

What is Power Law?

A

P = IE

Power = Current x Voltage

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

Ampere Rule in Parallel Circuits

A

The total current is the sum of all the currents through all branches of the circuit.

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

According to the Bohr Model how many electrons are in the shell #1(K)?

A

2

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

Name the three main parts of an Atom and their respective charge?

A

Proton (+), Electron (-), & Neutron (+-)

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

According to the Bohr Model how many electrons are in the shell #2(L)?

A

8

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

What is the coil in which voltage is induced by motion through a magnetic field called?

A

Armature

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

What device is connected to an armature in order to convert AC to DC?

A

Commutator

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

Electron Theory of Current Flow

A

Current flows from - to +

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

Voltage Rule in Parallel Circuits

A

The voltage across any part of the circuit is the same as the total voltage.

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

If a “AA” battery and a “D” battery were each connected to a load with identical resistance. Which battery would last longer?

A

The “D” battery has a greater surface area which increases it’s capacity, thus providing a higher ampere-hour rating than a “AA” battery.

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

According to the Bohr Model how many electrons are in the shell #3(M)?

A

18

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

A neutral wire is typically which color?

A

White/Grey

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

Using the Atomic number 13, and the electron orbit formula 2N2, is the element a conductor, semiconductor, or an insulator?

A

Conductor

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

Define Watt

A

Watt (W) is a measure of the amount of power used in a circuit.

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

Conventional Theory of Current Flow

A

Current flows from + to -

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

What is the ladder rule?

A

4:1 / For every 4 feet of ladder height you need to be a distance of 1 foot from the wall.

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

Define Reluctance

A

The resistance of magnetization.

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

Ampere Rule in Series Circuits

A

The current is the same at any point in the circuit.

25
In a 3-way switch what is the wire running from the second switch to the load called?
Switch Leg
26
Open Circuit
When an electrical circuit is incomplete.
27
What is the positive electrode in a battery called?
Anode
28
Define Ampere
Ampere (A) is a measure of electricity flowing through a circuit. 1A is equal to 1 Coulomb per second.
29
What is Static Electricity?
A buildup of electrons sitting still without moving.
30
Define Coulomb
6.25 x 1018 Electrons
31
Voltage Rule in Series Circuits
The sum of all voltage drops across resistors must equal the voltage applied to the circuit.
32
How many valence electrons does a semiconductor possess?
4-6
33
How much current does it take to be fatal?
100-200 Milliamperes (.001-.002 A)
34
What occurs when current flows through a conductor?
A magnetic field is generated around the conductor.
35
Define Resistance
An Ohm (Ω) is a measure of the opposition to electricity flowing through a circuit.
36
Closed Circuit
When an electrical circuit is complete and electricity is flowing.
37
How many valence electrons does a conductor possess?
1-3
38
Which of the two types of Batteries is rechargeable?
Secondary
39
Define Saturation
All the magnetic domains in a material are aligned so that it cannot become magnetized further.
40
Define Flux Density
The concentration of lines of magnetic force.
41
A ground wire is typically which color?
Green
42
What is Ohm's Law?
E = IR Voltage = Current x Resistance
43
The Atomic number of an element is 13, how many protons and electrons does this element have?
13 Protons & 13 Electrons
44
What is the most important rule to follow when working with electrical circuits?
To think... / Always make sure the circuit is de-energized.
45
Resistance Rule in Series Circuits
The total resistance to current flow is equal to the sum of all resistances.
46
How much power is consumed in a circuit containing 240 V, 20 A, and 12 Ω?
4800 W
47
What is a Voltaic Cell?
Two dissimilar metals submerged in an electrolyte solution.
48
Define Permeability
The ability to become magnetized.
49
Define Voltage
Voltage (V) is a measure of electrical pressure. / The potential difference between two points in a conducting wire.
50
Short Circuit
When a path to ground other than the intended path is established.
51
How many valence electrons does and insulator possess?
7-8
52
A common/hot wire is typically which color?
Black/Red
53
Define Residual Magnetism
The ability of a material to retain magnetization.
54
A 240 V circuit has a current flow of 20 A. How much resistance is connected in the circuit?
240 V / 20 A = 12 Ω
55
What is the “Law of Charges”?
Opposite charges attract, and like charges repel.
56
According to the Bohr Model how many electrons are in the shell #4(N)?
32
57
In a 3-way switch what are the wires running from the first switch to the second switch called?
Travellers
58
What is the maximum number of electrons that can occupy the outermost energy level or valence shell?
8

Basic Electricity & Applied Mathematics (19 decks)

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