P5 - Electricity In The Home Flashcards
1
Q
D.C?
A
Direct current (torch etc.)
2
Q
A.C
A
Alternating current, repeatedly reverses its direction of flow
3
Q
Frequency?
A
= 1/ time
Taken for one cycle of waves
4
Q
Current alternates because…
A
There is a large potential difference between the neutral wire and the live wire. Polarity reverses the direction.
