Question

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

• A. Tin-lead alloy
• B. Nichrome
• C. Tungsten
• D. Constantan

Answer 1

Answer:

B. Nichrome

• 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.