Plugs And Cables

Question 1

Cables are kept safe by

Answer 1

Tough plastic case

Cable made up of plastic

Question 2

What’s a fuse?

Answer 2

Melting if the currents get high

Question 3

Right wire is the

Answer 3

Brown > live wire

Question 4

Neutral wire is

Answer 4

Blue and it’s to the left

Question 5

Earth wire is

Answer 5

Green and yellow

Question 6

Why are wires insulated?

Answer 6

So they don’t touch each other

Question 7

2 core cables are on

Answer 7

Hair dryers

Question 8

What are 3 core cables used for

Answer 8

Connected to a metal casing kettle

Question 9

How is the live wire (brown) dangerous

Answer 9

You can get electric shock

Question 10

How do you prevent the electric shock from the live wire

Answer 10

Goes through the Earth wire which has a low resistance

Question 11

What does RCCB stand for?

Answer 11

Residval current circuit breaker

Question 12

RccB is used in

Answer 12

Lawn mowers

Question 13

What does Rccb detect?

Answer 13

A current in a live wire- neutral

Question 14

What’s the advantages of Rccb?

Answer 14

Quicker

Reset

Question 15

When a current go through the resistor it gets

Answer 15

Hot and it’s temp rises

Question 16

Wire carrying a current

Answer 16

Gets warmer

Question 17

What’s a disadvantage of a filament lamp?

Answer 17

Gets hot which becomes a wasted energy

Question 18

When the filament gets got this means

Answer 18

It glows

Question 19

What’s more efficient than the filament lamp?

Answer 19

CFI- doesn’t generate heat which means it’s more efficient because it wastes less energy

Question 20

What’s the equation for power?

Answer 20

P=E/T

P=VxL