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Which of the following materials is preferably used in making heating elements of electrical heating devices?

ATin-lead alloy

BNichrome

CTungsten

DConstantan

Answer:

B. Nichrome

Read Explanation:

  • Nichrome is an alloy commonly used in heating elements due to its high resistance and ability to withstand high temperatures.

  • Nichrome is used as a heating element due to its high resistivity, ability to withstand high temperatures, resistance to oxidation, thermal stability, and ease of fabrication.

  • These properties make it an ideal choice for applications where heat generation is necessary.

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