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Question:Which of the following work on the principle of Electromagnetic Induction? I. D.C.Dynamo II. Induction Coil III. Transformer

a) 1, 2 and 3

b) 2 and 3

c) Only 3

d) 1 and 3

Check Answer:


• A. C. Dynamo also work on Electromagnetic Induction. • When an induced current is produced because of voltage production (electromotive force) due to a changing magnetic field, it is called Electromagnetic Induction. This either happens when a conductor is placed in a moving magnetic field (when using ac power source) or when a conductor is constantly moving in a stationary magnetic field. This phenomenon was discovered by Michael Faraday.