electrics

Question 1

Conductor

Answer 1

A material of which electricity can flow through easily

Question 2

current

Answer 2

flow of electrons through a conductor (measured in A)

Question 3

Electron flow

Answer 3

the movement of electrons in a material that is a conductor

Question 4

Insulators

Answer 4

Materials that don’t let electrons pass through (opposite of conductors)

Question 5

potential difference

Answer 5

the voltage available to operate the component

Question 6

electromotive force

Answer 6

The force that causes electron flow

Question 7

voltage drop

Answer 7

voltage required to push current around the circuit

Question 8

series circuit

Answer 8

Consumers are connected in sequence, one after the other and therefore the same level of current flows through all consumers
(if one bulb fails, the series is broken, they all fail.)

Question 9

parallel circuit

Answer 9

consumers that are connected independently from any other consumers, meaning that all consumers share the available current.
(if one bulb fails, the others stay lit)

Question 10

earth return

Answer 10

Current returns to the battery through there body/chassis of the car.
Lower costs due to less wiring, simpler wiring diagrams
However has a higher chance of static build ups.

Question 11

insulated return

Answer 11

current returns to the battery through wires and cables.
higher costs and more complex wiring diagrams
less static build up

Question 12

changing ac (from the alternator) to dc is called

Answer 12

rectification

Question 13

dynamo

Answer 13

driven from the engine, usually by a belt, and produces electrical current to supply various circuits and for charging the battery.

Question 14

ohms law

Answer 14

v/r=i

Question 15

what does the rotor do in an alternator

Answer 15

forms the electromagnet, and therefore an electromagnetic field causes the rotor to rotate.