A. A Wheatstone bridge circuit is formed using the two wires. It is used to measure a resistance by balancing two legs of the circuit. B. The sample of atmosphere is filtered and passed through a diffuser before reaching the two chambers. C. One chamber is with a magnetic field and the other without a magnetic field. D. A difference in the thermal conductivity of the oxygen with respect to air is developed and this causes an imbalance in the resistance. « Previous Next »
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