# Electromotive force

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The ohm is defined as a resistance between two points of a conductor when a constant potential difference of 1 volt, applied to these points, produces in the conductor a current of 1 ampere, the conductor not being the seat of any electromotive force.[1]

7.4 electromotive force and internal resistance

Electromotive force - Wikipedia, the free encyclopedia

The counter-electromotive force (abbreviated counter EMF, or CEMF),[1] also known as the back electromotive force, is the voltage, or electromotive force, that pushes against the current which induces it. CEMF is the voltage drop in an alternating current (AC) circuit caused by magnetic induction (see Faraday's law of induction, electromagnetic induction, Lenz's Law). For example, the voltage drop across an inductor is due to the induced magnetic field inside the coil

Electromotive force - Wikipedia

Cation Designs: High School Science Teacher Resources

Electromotive Force Series.jpg

Electromotive Force: Principles and Measurements

Faraday's Law of Induction-- is a basic law of electromagnetism predicting how a magnetic field will interact with an electric circuit to produce an electromotive force (EMF)—a phenomenon called electromagnetic induction. It is the fundamental operating principle of transformers, inductors, and many types of electrical motors, generators and solenoids.

Advances in Engineering features: Thermodynamic Properties of Strontium-Bismuth Alloys Determined by Electromotive Force Measurements