37. IE An ohmic resistor in a circuit is designed to operate at 120 V. (a)...
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37. IE •• An ohmic resistor in a circuit is designed to operate at 120 V.
(a) If you connect the resistor to a 60-V power source, will the resistor dissipate heat at
(1) 2, (2) 4, (3) 1/2, or (4) 1/4 times the designed power?
Why?
(b) If the designed power is 90 W at 120 V, but the resistor is connected to a 30-V power supply, what is the power delivered to the resistor?
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Related Book For 
College Physics Essentials Electricity And Magnetism Optics Modern Physics Volume Two
ISBN: 9781032337272
8th Edition
Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
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