P2 5 Cables and Current

Question 1

What is direct current?

Answer 1

Direct Current is in one direction only

Question 2

What is alternating current?

Answer 2

Alternating current repeatedly reverses its direction

Question 3

Give an example of direct current

Answer 3

The battery in a torch

Question 4

Give an example of alternating current

Answer 4

Switching a light on at home

Question 5

What does a mains circuit have?

Answer 5

A mains circuit has: a live wire that is alternatively positive and negative at every cycle a neutral wire at 0 volts the neutral wire earthed at the local substation

Question 6

Plug Wiring

Answer 6