WJEC GCSE Electronics timing circuits quiz quiz
14questions. Pick an answer and you'll see why right away.
What does a capacitor store?
As a capacitor charges through a resistor, its voltage:
Why does the charging of a capacitor slow down over time?
Using a larger resistor in an RC network makes the charging:
A monostable circuit has:
What is the pulse duration equation for a 555 monostable?
A 555 monostable has R = 100 kΩ and C = 10 µF. The pulse duration is:
An astable circuit produces:
What is the frequency equation for a 555 astable?
When calculating astable frequency, a common mistake is to forget to:
In an astable output, the 'mark' is the time the output is:
Why is the mark longer than the space in a standard 555 astable?
How is the period of a square wave related to its frequency?
A monostable produces how many output pulses for a single trigger?