College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies
Section: Chapter Questions
Problem 48PE: (a) The plug-in transformer for a laptop computer puts out 7.50 V and can supply a maximum current...
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Question
![Part A
A model-train transformer plugs into 120-V ac and
draws 0.32 A while supplying 7.8 A to the train.
What voltage is present across the tracks? Assume 100% efficiency
Express your answer to two significant figures and include the appropriate units.
Vs =
Value
Units
Submit
Request Answer](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcb84d205-6e96-473b-ad69-e1fd87a2d08f%2Fd7c8b0d7-47f0-43d4-8c18-d91814643d86%2Fln1mvmg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Part A
A model-train transformer plugs into 120-V ac and
draws 0.32 A while supplying 7.8 A to the train.
What voltage is present across the tracks? Assume 100% efficiency
Express your answer to two significant figures and include the appropriate units.
Vs =
Value
Units
Submit
Request Answer
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