: a law in electricity: the strength of a direct current is directly proportional to the potential difference and inversely proportional to the resistance of the circuit
Examples of Ohm's law in a Sentence
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From Ohm's law and the voltage loop rule, each resistor will have a 1-volt potential difference.
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Rhett Allain, Wired News, 22 May 2026
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Rhett Allain, Wired News, 22 May 2026
Cite this Entry
“Ohm's law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Ohm%27s%20law. Accessed 27 May. 2026.
Copy CitationKids Definition
Ohm's law
noun
: a law in electricity that states that the current in a circuit is equal to the potential difference divided by the resistance of the circuit
Medical Definition
Ohm's law
noun
: a law in electricity: the strength or intensity of an unvarying electric current is directly proportional to the electromotive force and inversely proportional to the resistance of the circuit
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