Siemens's law


Sie·​mens's law
: a statement in electricity: the greater the ratio of counter electromotive force to impressed electromotive force in a motor, the greater is its efficiency

Word History


after Werner von Siemens †1892 German electrical engineer and inventor, its formulator

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near Siemens's law

Cite this Entry

“Siemens's law.” Dictionary, Merriam-Webster, Accessed 7 Dec. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!