Induction heating takes place it which of the following ?
Correct answer: D. Conducting materials which may or may not be magnetic
- A. Insulating materials
- B. Conducting materials which are magnetic
- C. Conducting materials which are non-magnetic
- D. Conducting materials which may or may not be magnetic
Explanation
Induction heating requires electrical currents induced in a conductor, so insulating materials cannot be heated directly by this method. The conductor may be magnetic, such as iron, or non-magnetic, such as copper or aluminium.
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