Question

A Wheatstone bridge has _______

(a) low sensitivity

(b) zero sensitivity

(c) high sensitivity

(d) infinite sensitivity

The question was asked in an international level competition.

I'd like to ask this question from Strain Gauge Measurement Technique in division Transducers of Electrical Measurements

Answer 1

Right option is (c) high sensitivity

To explain: A Wheatstone bridge circuit has a high sensitivity for detecting very small variation in the values of resistance. We can connect the strain gauge in one of the arms of a Wheatstone bridge and measure the strain in terms of variation in resistance.