Other slides in this set

Slide 2

Preview of page 2

Here's a taster:

Electrical cable
Electrical cable connects the
plug to a device.
What does the cable look like inside?
How is it designed for maximum safety?
© Boardworks Ltd 2003…read more

Slide 3

Preview of page 3

Here's a taster:

Electrical cable cross- section
The cable contains three wires.
What material is the wire? Copper
Each wire is encased in plastic.
Why is plastic used?
Plastic is an electrical insulator.
The wires are then encased in
another insulating layer of plastic.
© Boardworks Ltd 2003…read more

Slide 4

Preview of page 4

Here's a taster:

Three copper wires
The three copper wires have different functions.
The colour of the plastic casing tells you what the wire is.
Colour Name
Green and yellow Earth
Blue Neutral
Brown Live
© Boardworks Ltd 2003…read more

Slide 5

Preview of page 5

Here's a taster:

The Live wire
The Live wire carries a current that alternates
between negative and positive values.
What is this type of current called?
Alternating Current (A.C.)
The Live wire is connected to
the Live pin.
Which is the live pin?
© Boardworks Ltd 2003…read more

Slide 6

Preview of page 6

Here's a taster:

The Neutral wire
The Neutral wire stays at a voltage close to zero
with respect to Earth.
What colour is the Neutral wire?
Blue
The Neutral wire is connected to
the Neutral pin.
Which is the neutral pin?
© Boardworks Ltd 2003…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10

Comments

lisa linsdell

A really good PP presentation for this topic. Contains useful animations, videos, learning checks, and exam style questions. Uses a variety of sources to ensure complete coverage. 

Similar Science resources:

See all Science resources »See all resources »