A schematic DC power supply (when connected to a residential 120-VAC outlet) provides 5 V and has an internal resistance of 100 Q. What must R be so that the voltage across the load is within 1% of 5 V?
A schematic DC power supply (when connected to a residential 120-VAC outlet) provides 5 V and has an internal resistance of 100 Q. What must R be so that the voltage across the load is within 1% of 5 V?
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter18: Resistive-inductive Parallel Circuits
Section: Chapter Questions
Problem 1PA: Incandescent lighting of 500 W is connected in parallel with an inductive load. A clamp-on ammeter...
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Transcribed Image Text:A schematic DC power supply (when connected to a residential 120-V AC outlet) provides 5 V
and has an internal resistance of 100 Q. What must R be so that the voltage across the load is
within 1% of 5 V?
Power supply
A
AAA
VV V
100 0
AC line
R
120 V
5.0 V
R
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