A power supply has a fixed output voltage of 12.0 V, but you need Vr = 3.5 V output for an experiment. (a) Using the voltage divider shown in Fig. 19–78, what should R, be if R is 14.5 N? (b) What will the terminal voltage Vr be if you connect a load to the 3.5-V output, assuming the load has a resistance of 7.0 N? R1 12.0 V R2 VT FIGURE 19–78 Problem 79.
A power supply has a fixed output voltage of 12.0 V, but you need Vr = 3.5 V output for an experiment. (a) Using the voltage divider shown in Fig. 19–78, what should R, be if R is 14.5 N? (b) What will the terminal voltage Vr be if you connect a load to the 3.5-V output, assuming the load has a resistance of 7.0 N? R1 12.0 V R2 VT FIGURE 19–78 Problem 79.
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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![A power supply has a fixed output voltage of 12.0 V, but you
need Vr = 3.5 V output for an experiment. (a) Using the
voltage divider shown in Fig. 19–78, what should R, be if R
is 14.5 N? (b) What will the terminal voltage Vr be if you
connect a load to the 3.5-V
output, assuming the load
has a resistance of 7.0 N?
R1
12.0 V
R2
VT
FIGURE 19–78
Problem 79.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9acd596f-f6a5-444a-a5f3-ccb556b94636%2F7173f1a5-d5e8-45aa-a97f-92aee580f88a%2Fd9he0kb_processed.png&w=3840&q=75)
Transcribed Image Text:A power supply has a fixed output voltage of 12.0 V, but you
need Vr = 3.5 V output for an experiment. (a) Using the
voltage divider shown in Fig. 19–78, what should R, be if R
is 14.5 N? (b) What will the terminal voltage Vr be if you
connect a load to the 3.5-V
output, assuming the load
has a resistance of 7.0 N?
R1
12.0 V
R2
VT
FIGURE 19–78
Problem 79.
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