Advanced Qualification · A-003 Measurements · A-003-001-010
Quelle est la tension crête à crête d'une onde sinusoïdale qui a une valeur efficace ("RMS") de 120 volts?
- A339,5 volts
- B84,8 volts
- C169,7 volts
- D204,8 volts
Correct answer: A — 339,5 volts. Question tirée de la banque officielle d'ISDE.
Why
To find the peak-to-peak voltage, you first multiply the RMS value of 120 volts by 1.414 to get the peak voltage, which is about 169.7 volts. The full explanation — and one for every question — is in Pro.
Practise this section
Measurements is section A-003 of the Advanced exam: Measurements: meters, oscilloscopes, counters, signal generators, and what a reading actually tells you.
Drill A-003 — free, no account