Figure 1 shows an experimental setup to be used in identifying the value of unknown resister,...
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Figure 1 shows an experimental setup to be used in identifying the value of unknown resister, R. Internal resistance of Voltmeter is 0.5 kQ. Observations are as follows, Voltmeter Reading - 100 V Ammeter Reading - 12 A A R E I. Calculate the resistance using meter readings. II. Calculate the percentage error of the above method if the exact value of the resistance is 4.5 Ω. II. Briefly describe the most probable reason for having such a value for error percentage. IV. Suggest a modification to the above circuit to minimize the error percentage. Calculate the new value of error percentage for the circuit you have suggested. V. Later, the unknown resistor, R was measured using a Kelvin Double Bridge circuit. Draw the circuit diagram and derive an expression to determine R, if the outer ratio and the inner ratio are equal. Calculate the unknown resistance if the standard resistance is 0.471 Q and the outer ratio is 10. Figure 1 shows an experimental setup to be used in identifying the value of unknown resister, R. Internal resistance of Voltmeter is 0.5 kQ. Observations are as follows, Voltmeter Reading - 100 V Ammeter Reading - 12 A A R E I. Calculate the resistance using meter readings. II. Calculate the percentage error of the above method if the exact value of the resistance is 4.5 Ω. II. Briefly describe the most probable reason for having such a value for error percentage. IV. Suggest a modification to the above circuit to minimize the error percentage. Calculate the new value of error percentage for the circuit you have suggested. V. Later, the unknown resistor, R was measured using a Kelvin Double Bridge circuit. Draw the circuit diagram and derive an expression to determine R, if the outer ratio and the inner ratio are equal. Calculate the unknown resistance if the standard resistance is 0.471 Q and the outer ratio is 10.
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Related Book For
Materials Science and Engineering An Introduction
ISBN: 978-0470419977
8th edition
Authors: William D. Callister Jr., David G. Rethwisch
Posted Date:
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