Question 4
- State two types of rectifiers.
- Draw and label the block diagram of a stabilized power supply unit.
Observation
The expected answers were;
- Types of rectifiers
- half wave rectifier
- full-wave rectifier
(b)
Candidates that attempted this question did fairly well. They were reported to perform better in part (a) than in (b). Teachers are encouraged to put in more effort in the teaching of power supply units.