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Correct Answer: (C)
controlling power and frequency of current only
Explanation: due to the principle of induction used, the electromagnetic fields are produced. these emf’s are used to stir the metal. hence, controlling the power and frequency, mixing and melting rates can be altered.
Explanation by: Mr. Dubey
due to the principle of induction used, the electromagnetic fields are produced. these emf’s are used to stir the metal. hence, controlling the power and frequency, mixing and melting rates can be altered.
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