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Which of the following does not occur in Hartman and Braun oxygen analyzer based on the magnetic wind?

(a) Oxygen is attracted to the magnetic field

(b) Oxygen becomes less paramagnetic due to rise in temperature

(c) Resistance change in a resistance connected to the Wheatstone bridge occur

(d) Wheatstone Bridge becomes balanced due to temperature change

The question was asked in semester exam.

Origin of the question is Magnetic Wind Instruments topic in chapter Industrial Gas Analysers of Analytical Instrumentation

1 Answer

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Correct choice is (d) Wheatstone Bridge becomes balanced due to temperature change

Explanation: In Hartman and Braun oxygen analyzer, the magnetic wind cools the heated winding. As a result, the bridge becomes unbalanced.

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