when an emergency radio is connected to a 9-V battery, a current of 25 mA flows through the radio. what is the internal resistance of the radio?

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter28: Current And Resistance
Section: Chapter Questions
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when an emergency radio is connected to a 9-V battery, a current of 25 mA flows through the radio. what is the internal resistance of the radio?

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