Physics, asked by simran1820, 11 months ago

Why Eureka metal is used to make standard resistance coil?​

Answers

Answered by Anonymous
0

Eureka metal (alloy) is used to make standard resistance coil, because -

  • Eureka is basically an alloy of copper and nickel.
  • The electrical resistivity of this alloy is as high as 4.9/10⁷ ohm.m and the melting point of this alloy is as high as 1300°C.
  • So, this alloy can easily produce high amount of electrical resistivity and has higher capacity of withstanding heat energy. These properties make this alloy an efficient resistant substance.
  • That's why, it's used in standard resistance coil.
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