On which principle does the transformer work?
Correct answer: B. Mutual induction
- A. Self induction
- B. Mutual induction
- C. Motional EMF
- D. Magnetic torque
Explanation
Transformer works on the principal of mutual induction, according to which; "The phenomenon in which a changing current in one coil induces an emf in anofher coil is called the mutual inductance." Hence, option B is correct.
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