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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A: Solution:   Given Values, R1=1 ΩR2=4 ΩR3=5.2 ΩE=24 V

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Q: Do it

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