ampere

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The World Science Festival’s Pioneers in Science

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Why Is a Group of Molecules Called a Mole?

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5 Quizzes That Will Tell You Whether You Should Have Been a Scientist

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History of Technology Timeline

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Holi: Festival of Colors

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ampere: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

News •

Record Smashing Electron Beam Delivers a Petawatt of Power in an Instant • Mar. 9, 2025, 6:25 AM ET (ScienceAlert)

Facts

Also Known As	amp • A

Topics

electric current International System of Units unit kilogram mole second metre kelvin candela metric system astronomical unit calorie month

Quiz

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Electricity: Short Circuits & Direct Currents

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Energy & Fossil Fuels

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Fun Facts of Measurement & Math