Which of the following high resistance materials has the highest operating temperature ?
Correct answer: A. Kanthal
- A. Kanthal
- B. Manganin
- C. Nichrome
- D. Eureka
Explanation
Kanthal is an iron-chromium-aluminium resistance alloy capable of operating at very high temperatures, generally higher than Nichrome, Manganin, or Eureka. Its high-temperature capability makes it useful in heating elements.
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