Advanced Qualification · A-003 Measurements · A-003-006-008
What happens inside a multimeter when you switch it from a lower to a higher voltage range?
- A Resistance is reduced in parallel with meter
- B Resistance is added in parallel with the meter
- C Resistance is added in series with the meter
- D Resistance is reduced in series with the meter
Correct answer: C — Resistance is added in series with the meter. From the official ISED question bank, verified word for word.
Why
To measure a higher voltage, the multimeter must limit the current flowing through its delicate internal movement so it does not burn out. The full explanation — and one for every question — is in Pro.
Practise this section
Measurements: meters, oscilloscopes, counters, signal generators, and what a reading actually tells you.