Electrical Theory

Question 1

What does the I stand for

Answer 1

The current

Question 2

What materials are good insulators

Answer 2

Wood 
Paper 
Rubber 
Mica 
Plastic 
Woven fabrics 
Glass

Question 3

What materials are good conductors

Answer 3

Brass 
Copper
Aluminium 
Sliver 
Carbon 
Gold

Question 4

What holds the electrons in orbet

Answer 4

Force of attraction

Question 5

Whats the outer most orbit known as

Answer 5

The valence shell

Question 6

Which way does flow always go

Answer 6

Negative ——> Positive

Question 7

What is current

Answer 7

the flow of electrons

Question 8

What is voltage

Answer 8

Voltage is the pressure

Question 9

6 methods in which voltage can be produced

Answer 9

• chemical
• friction
• induction
• pressure
• heat
• light

Question 10

What type of metal is needed to produce a voltage

Answer 10

Two different metal materials

Question 11

Four factors that effect conductors

Answer 11

• temp
• length
• material
• cross sectional area

Question 12

Define resistance

Answer 12

Resistance is the opposition to current flow

Question 13

If current flow goes from positive to negative what is it called

Answer 13

Conventional current flow

Question 14

Whats electromotive force

Answer 14

Is the force that drives the current around the circuit

Question 15

Whats the outer orbit of an attom called

Answer 15

Valance shell

Question 16

What is the electron in the outer orbit called

Answer 16

Valance electron

Question 17

Whats the polarity of an electron

Answer 17

Negative

Question 18

If an atom is removed by external force it is know as a

Answer 18

Positive ion

Question 19

Whats the unit of measurement for current

Answer 19

Amps

Question 20

To produce voltage chemically the two metal plates need to be made of

Answer 20

Two different metals

Question 21

What is the name given to the materials in a solar panel

Answer 21

Semi conductors