出典:Wiktionary
出典:『Wiktionary』 (2026/01/15 20:05 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/21 05:10 UTC 版)
An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current. Micro-ohmmeters (microhmmeter or microohmmeter) make low resistance measurements. Megohmmeters (aka megaohmmeter or in the case of a trademarked device Megger) measure large values of resistance. The unit of measurement for resistance is ohms (Ω).
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