Systems and Signal Processing module quiz: the input-process-output model, analogue versus digital signals and feedback (O-Level Electronics) quiz
12questions. Pick an answer and you'll see why right away.
What are the three stages of the systems model used in electronics?
In the input-process-output model, which component is the input block of a light-activated alarm?
Which block in the systems model decides or amplifies the signal?
What is a key advantage of a digital signal over an analogue one?
Why is a converter needed between the analogue world and a digital system?
What does negative feedback do in a control system?
A thermostat that switches a heater off as the room reaches the target temperature is an example of which kind of system?
What is the effect of positive feedback?
What distinguishes an open-loop control system from a closed-loop one?
Which is the best example of an analogue signal?
Drawing a system as labelled blocks with arrows between them is useful because it
In a temperature control system, feeding the measured temperature back to switch the heater off is an example of