Mains Electricity Flashcards
1
Q
What sort of supply is the UK mains
A
It is an AC supply ( alternating current), which means that the current is constantly changing direction.
The frequency is 50cycles per second( 50Hz)
2
Q
What does the GAIN dial control on an oscilloscope
A
Gain controls how many colts each centimetre division represents on the vertical axis
3
Q
What does the TIMEBASE dial control
A
Controls how many milliseconds each division represents on the horizontal axis
4
Q
What is the UK. Mains supply
A
Approximately 230 volts
