P5 Flashcards
1
Q
What is the difference between alternating and direct current?
A
Direct current flows in one direction, alternating current reverses its direction
2
Q
What wire does a two-core cable not have?
A
It doesn’t have an earth wire
3
Q
What is the purpose of the earth wire?
A
It prevents appliances from becoming live if the live wire breaks and touches the case
4
Q
What are the plug pins made of?
A
Brass- it is a good electrical conductor and will not rust/oxidise
5
Q
What is the role of the neutral wire?
A
To complete the circuit
