For the potentiometer in Fig. 1:a. What are the voltages Vab and Vbc with no load applied...

For the potentiometer in Fig. 1:

a. What are the voltages Vab and Vbc with no load applied ?

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b. What are the voltages Vab and Vbc with the indicated loads applied?

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c. What is the power dissipated by the potentiometer under the loaded conditions in Fig. 1?

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d. What is the power dissipated by the potentiometer with no loads applied? Compare it to the results of part (c).

FIG. 1