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A multifunction measuring instrument used for measuring AC and DC voltage [V] and current [A] as well as resistance [Ω]. Many digital multimeters can also measure frequency [Hz], duty cycle [%], capacitance [F], temperature [°C], and/or other electrical or physical properties. Most are handheld; more expensive bench models are also available for applications requiring high precision.

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Zero voltage on voltmeter means zero resistance and infinite resistance?

Just a few thoughts here in no particular order of importance ... Having had enough trouble over the years, I always give my DMM probes the "wiggle test" Connect either to a known impedance ( say, 1K …
IchabodKunkleberry's user avatar