Lecture 1 Flashcards

(40 cards)

1
Q

Present in all matter in the form of electrons and protons

A

Electricity

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

A path for current flow

A

Circuit

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

Movement of electric charges around a closed path or circuit

A

Current

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

A material in which electron can move easily from one atom to the next

A

Conductor

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

A material in which electrons tend to stay in their own orbit

A

Insulator

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

Another name for Insulator is?

A

Dielectric

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

A material that is neither good conductor nor a good insulator

A

Semiconductor

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

Smallest particle of an element that still has the same characteristics as the element

A

Atom

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

Number of protons balanced by an equal number of electrons, in an atom

A

Atomic Number

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

Most basic particle of negative charge

A

Electron

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

Most basic particle of positive charge

A

Proton

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

Particle contained in the nucleus of an atom that is electrically neutral

A

Neutron

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

Massive stable part of the atom that contains both protons and neutrons

A

Nucleus

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

An atom that has neither gained or lost one or more valence electrons to become electrically charged

A

Ion

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

An electron that can move freely from one atom to the next

A

Free Electron

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

Movement of electrons that provides current in a circuit

A

Electron Flow

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

Number of electrons in an incomplete outermost shell of an atom

A

Electron valence

18
Q

Number of element that gives the number of proton in the nucleus of the atom, balanced by an equal number of orbital electrons

A

Atomic Number

19
Q

Capacity of an atom to give, accept or share electrons to achieve octet state

20
Q

The symbol of current is?

21
Q

Opossition to the flow of current

A

Resistance (Ohm)

22
Q

Direction of current flow associated with positive charges in motion

A

Conventional Current

23
Q

Cannot be decomposed any further by chemical action

24
Q

Charges of opposite attract

25
Has very low resistance
Conductors
26
Has very high resistance
Insulators
27
Is the most widely used semiconductor material in the electronics industry
Silicon
28
What is it called when the characteristics of pure semiconductors are altered through a process known as?
Doping
29
What is the outermost shell called?
Valence Shell/Ring
30
How many electrons does most conductors have in the valence shell?
1
31
How many electrons does semiconductors have in their valence shell?
4
32
Most basic semiconductor device that allows current to pass through it in only one direction
Diode
33
Produces Thermoelectricity
Heat Action
34
Produces Photo-electricity
Light Action
35
Produced by rotating machines
Mechanical Action
36
Why is copper the best option for wire production
Low resistivity, Flexible, Cheap, Less oxidative
37
What is it called when copper produce a greenish patina?
Copper Oxide
38
It protects the copper from corroding without interfering with the conductivity
Copper Oxide
39
How does aluminum wiring compare to copper?
Low Conductivity, Prone to oxidation
40