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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.

Related Questions:

A beam of white light undergoes dispersion through a triangular glass prism forming a band of seven colours. Which of the statements is/are correct?

  1. a) The red-coloured component has minimum refractive index.
  2. (b) The violet-coloured component deviates the least.
  3. (c) All components of white light have same speed in glass.
    ഒരു പരിസ്ഥിതി ഏജൻസി ഒരു മലിനജല ശുദ്ധീകരണ പ്ലാൻറിന്റെ താഴെയുള്ള നദിയിൽ നിന്നുള്ള ജല സാമ്പിൾ പരിശോധിച്ചപ്പോൾ അതിൽ വളരെ ഉയർന്ന ബയോകെമിക്കൽ ഓക്‌സിജൻ ഡിമാൻഡ് (BOD) ഉണ്ടെന്ന് കണ്ടെത്തി. ഈ ഫലം സൂചിപ്പിക്കുന്നത്
    Two metallic wires A and B are made of the same material. Wire A has length 1 and radius r while wire B has length 21 and radius 21. The ratio of the resistance of wire A to that of wire B is?
    Identify the INCORRECT statement from among the following

    Which of the following statements is/are correct?

    1. (A) Resistance is independent of temperature.
    2. (B) The more the voltage across a conductor, the more is the resistance.
    3. (C) The S.I unit of resistance is ohm.