Moderate
In resistance heating highest working temperature is obtained from heating elements made of_____________?
Correct answer: C. silicon carbide
- A. nickel copper
- B. nichrome
- C. silicon carbide
- D. silver
Explanation
Silicon carbide heating elements can operate at much higher temperatures than metallic elements such as nichrome or nickel-copper. Therefore they are selected when the highest resistance-heating temperature is required.
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