Answer:
Induction furnace and transformers has the same principle. A high-frequency current is passed via water-cooled coil acting as primary coil of the transformer. AC current is passed through the primary coil leading to the generation of magnetic flux cutting the secondary coil. Electromagnetic induction is the main principle using which induction furnace works.
This is basically metallic charge which induces the electromotive force. When the temperature is made to increment above the melting point of the metallic charge then the changes take place to liquid phase.
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