Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Q5) In a certain experiment, cylindrical samples of diameter 4 cm and length 7 cm
are used. The two thermocouples in each sample are placed 3 cm apart. After
initial transients, the electric heater is observed to draw 0.6 A at 110 V, and both
differential thermometers read a temperature difference of 10°C. Determine the
thermal conductivity of the sample.
Answer: 78.8 W/m °C
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Transcribed Image Text:Q5) In a certain experiment, cylindrical samples of diameter 4 cm and length 7 cm are used. The two thermocouples in each sample are placed 3 cm apart. After initial transients, the electric heater is observed to draw 0.6 A at 110 V, and both differential thermometers read a temperature difference of 10°C. Determine the thermal conductivity of the sample. Answer: 78.8 W/m °C
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