Advanced Qualification · A-003 Measurements · A-003-006-006
The sensitivity of a voltmeter, whose resistance is 150 000 ohms on the 150-volt range, is:
- A 100 000 ohms per volt
- B 10 000 ohms per volt
- C 150 ohms per volt
- D 1000 ohms per volt
Correct answer: D — 1000 ohms per volt. From the official ISED question bank, verified word for word.
Why
To find the sensitivity, you divide the total resistance of the meter by the full-scale voltage range. 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.