USING ELECTRICITY Alternating Current Flashcards
0
Q
Is batteries ac or dc?
A
Dc
1
Q
Is mains ac or dc?
A
Ac
2
Q
What is current?
A
Th movement of electric charge
3
Q
What is alternating current?
A
Current changes direction
4
Q
Direct current
A
Current which flows in one dorestion
5
Q
What is the mains frequency and voltage?
A
50hz and 230v
6
Q
Why do conductors conduct electricity?
A
There are electrons which are free to move.
7
Q
What is charged measured in?
A
Coulombs (C)
8
Q
Peak value of an ac supply is ____ than the declared value (rms value)
A
Greater
9
Q
What is voltage?
A
The measure of energy given to charges in the circuit
