The power usage of a DC strip heater is to be determined at a 95% confidence level, using a voltmeter and ohmmeter (P =E2/R). Determine the design state uncertainty of power, using a nominal vale of E = 8v and R = 5 ohm. Instrument Error (95%) Resolution Voltmeter +- 0.5% 0.01 [V] Ohmmeter +- 0.3% 0.001 [ohm]

The power usage of a DC strip heater is to be determined at a 95% confidence level, using a voltmeter and ohmmeter (P =E2/R). Determine the design state uncertainty of power, using a nominal vale of E = 8v and R = 5 ohm. Instrument Error (95%) Resolution Voltmeter +- 0.5% 0.01 [V] Ohmmeter +- 0.3% 0.001 [ohm]

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

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