Testing a Fuse with a Volt-Ohm Meter (VOM) When checking whether a fuse is good or open with a handheld meter, which measurement function should you select?

Introduction / Context:A fuse is a protective device that should present near-zero resistance when intact and an open circuit when blown. The simplest bench test confirms continuity without applying power to the circuit under test.

Given Data / Assumptions:

• Meter has selectable functions: AC volts, DC volts, current, and resistance (ohms)/continuity.
• Fuse is removed from the circuit to avoid parallel paths.
• We only need to know if the fuse conducts.

Concept / Approach:

The resistance (ohms) or continuity function sources a small current and measures resulting voltage to determine resistance. A good fuse reads near 0 Ω or triggers a continuity beep; an open fuse reads OL or infinite resistance. Voltage or current modes are neither required nor safe for simple continuity checks.

Step-by-Step Solution:

Verification / Alternative check:

Install a known-good fuse and observe circuit operation to double-check the diagnosis.

Why Other Options Are Wrong:

Voltage ranges do not measure continuity, and current mode risks shorting the meter across a source. “None of the above” is incorrect because ohms is the standard choice.

Common Pitfalls:

Testing in-circuit (parallel paths), failing to isolate power, or using the current range by mistake can damage the meter or circuit.

Final Answer:

Ohms