Advanced Qualification · A-003 Measurements · A-003-006-004
The sensitivity of an ammeter is an expression of:
- Athe amount of current causing full-scale deflection
- Bthe resistance of the meter
- Cthe loading effect the meter will have on circuit
- Dthe value of the shunt resistor
Correct answer: A — the amount of current causing full-scale deflection. From the official ISED question bank, verified word for word.
Why
Sensitivity tells you exactly how much current must flow through the meter to make the needle hit the very end of the scale, known as full-scale deflection. 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