Faraday's law of electromagnetic induction has been used in the construction:
Correct answer: A. Electric generator
- A. Electric generator
- B. Ammeter
- C. Galvanometer
- D. All of above
Explanation
Faraday's law of electromagnetic induction has been used in the construction of Electric generators.Faraday's law of electromagnetic induction states that a changing magnetic field induces an electromotive force (emf) in a closed circuit. This principle forms the basis for the operation of electric generators, which convert mechanical energy into electrical energy. In an electric generator, a coil of wire is rotated within a magnetic field, causing the magnetic flux through the coil to change. This change in magnetic flux induces an emf in the coil, producing an electric current when the circuit is closed. Therefore, Faraday's law is fundamental to the functioning of electric generators.
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About Electromagnetic Induction
Changing magnetic flux induces an emf according to Faraday's law, while Lenz's law gives the direction that opposes the change producing it. Transformers apply induction between coils to step alternating voltage up or down, with turns ratio, current transformation and energy losses determining practical operation.
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