The model of a cable and load resistor connected to a source is shown in Figure P 3.3-5

Chapter 3, Problem P 3.3-5

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QUESTION:

The model of a cable and load resistor connected to a source is shown in Figure P 3.3-5. Determine the appropriate cable resistance R so that the output voltage \(v_o\) remains between 9 V and 13 V when the source voltage \(v_s\) varies between 20 V and 28 V. The cable resistance can assume integer values only in the range 20 < R < 100 \(Omega\).

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QUESTION:

The model of a cable and load resistor connected to a source is shown in Figure P 3.3-5. Determine the appropriate cable resistance R so that the output voltage \(v_o\) remains between 9 V and 13 V when the source voltage \(v_s\) varies between 20 V and 28 V. The cable resistance can assume integer values only in the range 20 < R < 100 \(Omega\).

ANSWER:

Step 1 of 3

Applying voltage division gives ,

.....(1)

To obtain the appropriate cable resistance  the output voltage  remains between  and  when the source voltage  varies between  and

 

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