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Questions and Answers
Who is generally credited with the discovery of electromagnetic induction?
Who is generally credited with the discovery of electromagnetic induction?
What did Faraday wrap around the iron ring in his first experimental demonstration of electromagnetic induction?
What did Faraday wrap around the iron ring in his first experimental demonstration of electromagnetic induction?
What did Faraday expect to happen when current started to flow in one wire wrapped around the iron ring?
What did Faraday expect to happen when current started to flow in one wire wrapped around the iron ring?
Who independently discovered electromagnetic induction in 1832?
Who independently discovered electromagnetic induction in 1832?
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What did Faraday call the transient current he observed when he connected the wire to the battery?
What did Faraday call the transient current he observed when he connected the wire to the battery?
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Study Notes
Electromagnetic Induction
- Michael Faraday is generally credited with the discovery of electromagnetic induction.
Faraday's Experiment
- In his first experimental demonstration of electromagnetic induction, Faraday wrapped two insulated copper wires around an iron ring.
- When current started to flow in one wire, Faraday expected to observe a magnetic field around the ring, but he did not expect it to induce a current in the second wire.
Independent Discovery
- In 1832, Joseph Henry independently discovered electromagnetic induction.
Faraday's Observations
- Faraday called the transient current he observed when he connected the wire to the battery an "induced current" or "electro-motive force".
- This induced current was a fundamental concept in understanding electromagnetic induction.
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Description
Test your knowledge of electromagnetic induction with this quiz! Explore Michael Faraday's discovery in 1831, Faraday's law of induction, the mathematical description by James Clerk Maxwell, and Lenz's law. See how well you understand the production of electromotive force across a conductor in a changing magnetic field.
