Exam NETA_2 Topic 1 Question 32 Discussion

Actual exam question for NETA's NETA_2 exam
Question #: 32
Topic #: 1
A digital multimeter (DMM), when set to measure voltage, typically has which type of input impedance?

Suggested Answer: C Vote an answer

Digital multimeters are designed withhigh, fixed input impedance-typically 10 megohms or higher-when measuring voltage. This minimizes loading effects on the circuit under test and allows accurate measurement without significantly altering circuit conditions.
NETA Level 2 technicians must understand meter characteristics to avoid misinterpretation of readings. High input impedance is especially important when testing control circuits, electronic relays, and high-resistance paths. Unlike analog meters, DMMs do not significantly load the circuit, making them suitable for precise voltage measurements in modern electrical systems.

by King at Oct 05, 2026, 03:35 PM

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