Electrical Theory

Question 0

Define a semi conductor

Answer 0

A semi conductor contains 4 electrons in the outer ring

Question 1

How many electrons are in the outer ring of a conductor

Answer 1

1-3 electrons quantify a conductor

Question 2

Define a insulator and explain why it is difficult for it to conduct

Answer 2

A insulator contains 5-8+ electrons in the outer ring, it is difficult because of the bond between the electrons and nucleus

Question 3

How many atoms approximately would it take to fill one cubic centimetre ?

Answer 3

Approximately. 110000000000000000000000

However the fuck much that is

Question 4

What is an electron?

Answer 4

A negatively charged particle

Question 5

What defines a proton

Answer 5

A positively charged particle

Question 6

What would cause an atom to gain or lose electrons (3 things)

Answer 6

Electrical mechanical and chemical activity

Question 7

The electrons within the outside ring of a atom are called _______ electrons .

Answer 7

What is valence electrons

Question 8

Define Coulomb’s law ,

Answer 8

Opposite charged particles attract ,like charges repel

Question 9

Electrons have a what kind of charge?

Answer 9

Negative

Question 10

An element consists of

Answer 10

Only one kind of atom

Question 11

What is inside the Necleus of an atom?

Answer 11

Protons and Neutrons

Question 12

a conductor of electricity is a material that?

Answer 12

Allows the Electrons to move through it

Question 13

Atoms consist of what 3 smaller particles?

Answer 13

Electrons, Protons, Neutrons

Question 14

Define Voltage in one word. Electrical what?

Answer 14

Force or Pressure

Question 15

Most insulators are compounds of?

Answer 15

Two or more elements

Question 16

Resistance of a conductor is determend by what 4 things?

Answer 16

Length, Cross - sectional area, temperature and type of material.

Question 17

The opposition of electron flow is?

Answer 17

Resistance

Question 18

Define Resistance

Answer 18

Opposition to the flow of electrons

Question 19

What does MALT stand for

Answer 19

Material
Area
Length
Temperature

Question 20

What is a resistor

Answer 20

A device device that offers resistance to the electron flow

Question 22

The cross-sectional area of a conductor is

Answer 22

A factor in determining the amount of resistance in a conductor.

Question 22

What is a positive temperature coefficient of resistance

Answer 22

The resistance of a material goes up as the temperature goes up.

Question 23

How does length affect the resistance in a conductor

Answer 23

The longer the conductor the more resistance is in the conductor

Question 24

What is a negative temperature coefficient of resistance

Answer 24

The resistance of a material decreases as the temperature rises.

Question 25

Voltage and resistance determine the amount of _________ in a circuit

Answer 25

current flow

Question 26

What does D/C stand for

Answer 26

Direct Current

Question 27

If there is more voltage in a circuit what would also increase

Answer 27

Current flow

Question 28

What does A/C stand for

Answer 28

Alternating current

Question 29

Current is electrical what?

Answer 29

Flow

Question 30

What source of voltage requires polarity markings?

Answer 30

Direct Voltage

Question 31

Why should we as heavy duty techs wear static wrist straps when working on electrical components?

Answer 31

To prevent a static discharge created from friction

Question 32

What is ESD?

Answer 32

Electrostatic Discharge

Question 33

A properly attached ground strap will ____ __ any electrostatic discharges before they can build up.

Answer 33

bleed off

Question 34

All materials are composed of

Answer 34

Atoms

Question 35

When an atom gains and electron, its _______charged

Answer 35

negativly

Question 36

Charged atoms( + or -) are called

Answer 36

ions

Question 37

when an atom loses one or more electrons is called

Answer 37

a positivly charged ion