Advanced Qualification · A-003 Measurements · A-003-006-004
The sensitivity of an ammeter is an expression of:
- A the amount of current causing full-scale deflection
- B the resistance of the meter
- C the loading effect the meter will have on circuit
- D the 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: meters, oscilloscopes, counters, signal generators, and what a reading actually tells you.