What is sensitivity of Wheatstone bridge?

Q.  The sensitivity of Wheatstone bridge is defined as ratio of
- Published on 14 Sep 15

a. Deflection of the galvanometer to the unit fractional change in the value of unknown resistance
b. Square of the deflection of the galvanometer to the unit fractional change in the value of unknown resistance
c. Deflection of the galvanometer to the twice of the unit fractional change in the value of unknown resistance
d. Unit fractional change in the value of unknown resistance to the deflection of the galvanometer

ANSWER: Deflection of the galvanometer to the unit fractional change in the value of unknown resistance

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