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Discussion :: Measurements and Instrumentation

  1. Kelvin's double bridge is used to measure low resistances because

  2. A.
    it has high sensitivity
    B.
    there is no thermoelectric emf
    C.
    resistance variation due to temperature
    D.
    effect of contact and lead resistances is eliminated

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    Answer : Option D

    Explanation :

    Effect of lead and contact resistances is very important in measurement of low resistances.


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