Slip rings are used in:
Correct answer: C. A.C generator
- A. Electric motor
- B. DC Dynamo
- C. A.C generator
- D. None of above
Explanation
Slip rings are used in A.C. generators.Slip rings are components used to transfer electrical power and signals from a stationary to a rotating structure, typically in electrical machines like generators and motors. In AC generators, slip rings are used to facilitate the transfer of the generated alternating current (AC) from the rotating armature to the external circuit. This allows the generated AC to be utilized without interruption, as the armature rotates continuously.
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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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