Voltmeter
Definition
A voltmeter is an instrument used to measure the potential difference or voltage across two points in a circuit. It measures how much electrical energy is being transferred between those points.
Related terms
Electromotive Force (EMF): EMF is the potential difference or voltage produced by a source such as a battery or generator.
Ammeter: An ammeter is an instrument used to measure the electric current flowing through a circuit. It tells us how many charges are passing through it per unit time.
Resistance: Resistance refers to how much opposition there is for electric current flow in a material or component of a circuit.
"Voltmeter" appears in:
Subjects (3)
AP Chemistry
AP Physics 1
AP Physics 2
Study guides (2)
AP Physics C: E&M - 3.1 Unit 3: Electric Circuits
AP Physics C: E&M - 3.3 Steady State Circuits
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About Us
About Fiveable
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Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
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Glossary
Cram Events
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Crisis Text Line
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.