The ____ must provide its own source of power.
A) ammeter
B) ohmmeter
C) voltmeter
D) wattmeter

Question

Quizplus · Accepted Answer

An ohmmeter must provide its own source of power to measure resistance because it applies a current to the component being measured and measures the resulting voltage drop, which requires an independent power source. The other options, ammeter, voltmeter, and wattmeter, do not require their own power source as they measure the flow of current or voltage across a circuit, which can be measured using the circuit's own power source.

The ____ Must Provide Its Own Source of Power