Advanced Qualification · A-004 Power supplies · A-004-001-006
The ripple frequency produced by a full-wave power supply connected to a normal household circuit is:
- A60 Hz
- B90 Hz
- C30 Hz
- D120 Hz
Correct answer: D — 120 Hz. From the official ISED question bank, verified word for word.
Why
In Canada, household electricity alternates 60 times per second, creating a 60 Hz cycle. The full explanation — and one for every question — is in Pro.
Practise this section
Power supplies is section A-004 of the Advanced exam: Power supplies: rectifiers, filtering, regulation, switching supplies and their failure modes.
Drill A-004 — free, no account