Continuous measurement of moisture content of paper in paper industry is done by measuring the_________________?
Correct answer: B. Electrical resistance through the paper
- A. Thermal conductivity through the paper
- B. Electrical resistance through the paper
- C. Magnetic susceptibility
- D. None of these
Explanation
Water conducts electricity better than dry paper, so the electrical resistance of paper decreases as its moisture content increases. This resistance can therefore be measured continuously for moisture control.
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