1. emf

noun. the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts.


  • electromotive force
  • voltage

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Example sentences of the word emf

1. Noun, singular or mass
Experiment with different ways of building electromagnets such as solenoids so that you can conserve emf in the most efficient way possible and prevent extra emf from causing unnecessary harm.

2. Adjective
The shapes of emf generators let scientists and engineers harness their power.