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Questions and Answers
What is the phenomenon where a changing magnetic field in a coil of wire induces an electromotive force?
What is the phenomenon where a changing magnetic field in a coil of wire induces an electromotive force?
- Faraday's law of electromagnetic induction (correct)
- Ohm's law
- Gauss's law for magnetism
- Lenz's law
In electromagnetic induction, the direction of the induced current is determined by which law?
In electromagnetic induction, the direction of the induced current is determined by which law?
- Gauss's law for electricity
- Lenz's law (correct)
- Ohm's law
- Ampère's law
What happens to the induced emf in a coil when the rate of change of the magnetic field through the coil increases?
What happens to the induced emf in a coil when the rate of change of the magnetic field through the coil increases?
- The induced emf remains constant
- The induced emf decreases
- The induced emf becomes zero
- The induced emf increases (correct)
Study Notes
Electromagnetic Induction
- Electromagnetic induction is the phenomenon where a changing magnetic field in a coil of wire induces an electromotive force (EMF).
- The direction of the induced current in electromagnetic induction is determined by Lenz's law.
- When the rate of change of the magnetic field through the coil increases, the induced EMF in the coil also increases.
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Description
Test your understanding of electromagnetic induction in physics with this quiz. Explore the phenomenon of induced electromotive force due to a changing magnetic field and discover how the direction of the induced current is determined by specific laws. See how the induced emf in a coil is affected when the rate of change of the magnetic field through the coil increases.
