For measurement of low resistances, Kelvin’s double bridge has high accuracy

Q.  For the measurement of low resistances, Kelvin’s double bridge has high accuracy because
- Published on 15 Sep 15

a. It has two set of ratio arms which eliminates effect of resistance of connecting lead
b. It has a null indicating galvanometer
c. It has two null indicator
d. It has four sets of ratio arms which eliminates the effect of resistance of connecting lead

ANSWER: It has two set of ratio arms which eliminates effect of resistance of connecting lead

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