What this chapter is about
For over a century, scientists knew that electric currents produce magnetic fields. The natural question arose: can moving magnets produce electric currents? In 1831, Michael Faraday in England and Joseph Henry in USA independently demonstrated that changing magnetic fields induce electric currents in closed conductors. This phenomenon, called electromagnetic induction, is the basis for generators, transformers, and most electrical power generation today.
Understanding electromagnetic induction requires knowledge of Faraday's law, Lenz's law, induced EMF, self-inductance, mutual inductance, and practical applications.
Learning objectives
- 1Explain faraday's Law, Induced EMF, and Applications of Electromagnetic Induction
- 2Explain fARADAY'S LAW OF ELECTROMAGNETIC INDUCTION
- 3Explain experimental Observations
- 4Explain faraday's Law
- 5Explain conditions for Induced EMF
- 6Explain lENZ'S LAW
Your learning path
Key terms
PrincipleInduced EMFApplicationsMagnetic fluxScenarioLenz's LawTransformerAC GeneratorEddy currentsEnergy considerationCurrentPolarityPeak EMFBack EMFStatementFrequency
Connected chapters
36Concepts
47Formulae
13Minutes