The resistance furnace produces heat by the__________________?
Correct answer: B. Flow of current through a heating element
- A. Electric arc struck between electrodes and the charge
- B. Flow of current through a heating element
- C. Combination of induced current and skin effect
- D. None of these
Explanation
In a resistance furnace, electrical resistance converts the current flowing through a heating element into heat, which is then transferred to the charge. An arc furnace instead uses an arc struck between electrodes and the charge.
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