Electrical Terminology

Question 1

Current is what?

Answer 1

The flow of free electrons through a conductor as they move from atom to atom

Question 2

Elections and protons have equal and opposite what?

Answer 2

Electrical charges

Question 3

The symbol for charge is?

Answer 3

Q

Question 4

The symbol for current is

Answer 4

i

Question 5

The formula for amperes is?

Answer 5

I = Q / t

Question 6

The formula for coulombs is?

Answer 6

Q = I t

Question 7

The force that causes electrons to flow through a conductor is called?

Answer 7

Electromotive force

Question 8

The symbol for emf is?

Answer 8

E

Question 9

The symbol for voltage is?

Answer 9

V

Question 10

The symbol for potential difference is?

Answer 10

pd

Question 11

Resistance is what?

Answer 11

Property or a conductor that tends to restrict the flow of an electrical current

Question 12

What is the units of electrical resistance?

Answer 12

Ohm

Question 13

The symbol for ohm is?

Answer 13

W

Question 14

Define conductance

Answer 14

The property of a material that allows electrons to flow through it

Question 15

Examples of conductors are

Answer 15

Silver
Copper
Aluminium
Brads
Zinc
Iron

Question 16

Examples of insulators

Answer 16

Dry air
Glass
Mica
Rubber
Asbestos
Bakelite

Question 17

An increased resistance will do what to the current

Answer 17

Decrease

Question 18

If the resistance of a wire is increased by any of these four factors - size, length, material and temperature the current is?

Answer 18

Decreased

Question 19

Current is inversely proportional to what?

Answer 19

Resistance

Question 20

Conventional current is?

Answer 20

flow from positive terminal of an electrical supply, through the conductor or load to the negative terminal

Question 21

Electron flow is?

Answer 21

In the opposite direction to conventional current flow