Which of the following materials is used for making coils of standard resistances ?

A. Copper

B. Nichrome

C. Platinum

D. Manganin

Answer: Option D

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Comments ( 1 )

  1. Vikas Rajak
    Vikas Rajak :
    11 months ago

    Manganin is a trademarked name for an alloy of typically 84% copper, 12% manganese, and 4% nickel. ... Manganin foil and wire is used in the manufacture of resistors, particularly ammeter shunts, because of its virtually zero temperature coefficient of resistance value and long term stability.
    Density (ρ): 8.4 g/cm3
    Volume resistivity (ρ): 43–48 μΩ⋅cm

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