Description
Vintage Radio House OHMS meter Japan
An ohmmeter is a device used to measure electrical resistance, which is expressed in ohms (Ω). Resistance is how much a material or component opposes the flow of electric current.
How it works:
An ohmmeter sends a small current through the component and measures how much voltage drops across it. Then, using Ohm’s Law (R = V/I), it calculates the resistance.
Types of ohmmeters:
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Analog ohmmeters – Use a needle gauge to show resistance.
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Digital ohmmeters (part of a multimeter) – Display resistance as a number on a screen. Uses:
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Testing wires or circuit components to see if they’re broken or intact.
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Checking resistors to verify their value.
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Diagnosing electrical faults in electronics or appliances.
