Electromotive Force (EMF)
Definition
EMF is the potential difference or voltage produced by a source such as a battery or generator. It represents the energy per unit charge that is converted from other forms of energy into electrical energy.
Related terms
Volt (V): Volt is the unit of measurement for electromotive force. It represents one joule of energy per coulomb of charge.
Generator: A generator is a device that converts mechanical energy into electrical energy by using electromagnetic induction.
Battery: A battery is a portable source of electrical energy that consists of one or more electrochemical cells connected together.
"Electromotive Force (EMF)" appears in:
Subjects (1)
AP Physics C: E&M
Study guides (1)
AP Physics 2 - 4.2 Resistivity and Resistance
Additional resources (1)
AP Physics 2 - Unit 5 Overview: Magnetism and Electromagnetic Induction
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Resources
Cram Mode
AP Score Calculators
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Help Center
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.