Question 131Electricity/Electronics - Assistant Engineer70% to pass
What is an ohmmeter used to measure?
AI Explanation
The correct answer is B) circuit resistance.
An ohmmeter is a device used to measure the resistance (in ohms) of a circuit or component. It works by passing a known current through the circuit or component and measuring the voltage drop, which can then be used to calculate the resistance according to Ohm's law (Resistance = Voltage / Current).
The other answer choices are incorrect because:
A) An voltmeter is used to measure voltage, not an ohmmeter.
C) A wattmeter is used to measure power, not an ohmmeter.
D) An ammeter is used to measure current flow, not an ohmmeter.
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