AC Theory Flashcards
1
Q
What does DC stand for?
A
Direct Current
2
Q
What does AC stand for
A
Alternating Current
3
Q
Why is AC benefitial over DC
A
More compact
Voltage easily regulated
4
Q
How does a AC current differ from a DC current.
A
DC only flows in one direction, AC goes back and forth
5
Q
What 2 factors of an AC current be changed
A
Voltage and Current
6
Q
What is the speed of change
A
Frequency
7
Q
Describe one cycle?
A
When the waveform hits the peak at positive back to zero then the peak hits negative and back to zero again.
8
Q
Define frequency
A
Cycles per second
9
Q
State the formula for working out hertz
A
1/time
10
Q
Define amplitude
A
The rise of voltage
