What is a multimeter used for in electrical work?

• A. To cut wires safely.
• B. To bend conduit.
• C. To measure voltage, current, resistance, continuity, and sometimes capacitance.
• D. To physically test insulation resistance only.

Answer: (C)

A multimeter is a versatile instrument that combines several measurement functions in one tool, making it essential for diagnosing electrical work. It lets you check voltage to know whether a circuit is live or what level of supply you’re dealing with, measure current to understand how much power is flowing, and test resistance to see if a component is good or if a path is open. The continuity test helps confirm that two points are electrically connected, which is crucial when tracing wiring or verifying switches and fuses. Many models also include a capacitance function, which is handy for diagnosing capacitors in a circuit.

The other tasks mentioned—cutting wires or bending conduit—are mechanical jobs that require hand tools, not measurement devices. And while measuring resistance is a common use, insulation resistance testing is typically done with a dedicated insulation tester that applies higher voltages to assess insulation quality, rather than a standard multimeter. So the broad range of measurement capabilities, including voltage, current, resistance, continuity, and sometimes capacitance, is what makes a multimeter the go-to instrument in electrical work.