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In conductivitimetric method, the concentration of sulphur dioxide is proportional to which of the following parameters of the saw-tooth waveform?

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In conductivitimetric method, the concentration of sulphur dioxide is proportional to which of the following parameters of the saw-tooth waveform?

(a) Average voltage

(b) Peak voltage

(c) Slope

(d) RMS voltage

I have been asked this question by my school principal while I was bunking the class.

This interesting question is from Sulphur Di-oxide Monitoring in section Pollution Monitoring Instruments of Analytical Instrumentation

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Correct choice is (c) Slope

Best explanation: In conductivitimetric method, the concentration of sulphur dioxide is proportional to slope of the saw-tooth waveform. Current is recorded every 15 minutes.

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