The current through a 10-ohm lamp energized by two series-opposing ideal batteries is measured to have a magnitude of 1 ampere. Determine the individual EMFs of the two batteries if the magnitude of the current through the same lamp becomes 2 amperes when the batteries become series-aiding. 15 and 25 volts; 5 and 15 volts 20 and 30 volts; 10 and 20 volts;
The current through a 10-ohm lamp energized by two series-opposing ideal batteries is measured to have a magnitude of 1 ampere. Determine the individual EMFs of the two batteries if the magnitude of the current through the same lamp becomes 2 amperes when the batteries become series-aiding. 15 and 25 volts; 5 and 15 volts 20 and 30 volts; 10 and 20 volts;
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter21: Circuits And Dc Instruments
Section: Chapter Questions
Problem 24PE: A child’s electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of...
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The current through a 10-ohm lamp energized by two series-opposing ideal batteries is measured to have a magnitude of 1 ampere. Determine the individual EMFs of the two batteries if the magnitude of the current through the same lamp becomes 2 amperes when the batteries become series-aiding.
15 and 25 volts; |
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5 and 15 volts |
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20 and 30 volts; |
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10 and 20 volts; |
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