Assume that the silicon diode in the circui shown in fig. requires a minimum current of 1mA to be above the knee point (0.7V) of its I-V characteristics. Aslo assume that the voltage across the diode is independent of current above the knee point. (a) If V_(B)=5V, what should be the maximum value of R so that the voltage is above the knee point? (b) If V_(B)=5V, what should be the value of R to estabilish the current of 5mA in the circuit? (c) What is the power dissipated in the resistance R and in the diode, when a current of 5mA flows in the circuit at V_(B)=6V? (d) If R=1kOmega, what is the minimum voltage V_(B) required to keep the diode above the knee point?

Assume that the silicon diode in the circui shown in fig. requires a m

1.	Assume that the silicon diode in the circui shown in fig. requires a minimum current of 1mA to be above the knee point (0.7V) of its I-V characteristics. Aslo assume that the voltage across the diode is independent of current above the knee point. (a) If V_(B)=5V, what should be the maximum value of R so that the voltage is above the knee point? (b) If V_(B)=5V, what should be the value of R to estabilish the current of 5mA in the circuit? (c) What is the power dissipated in the resistance R and in the diode, when a current of 5mA flows in the circuit at V_(B)=6V? (d) If R=1kOmega, what is the minimum voltage V_(B) required to keep the diode above the knee point?
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