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A circuit contains a non-ideal pn-junction diode as shown. The switch has initially been closed for a long time. The reverse bias voltage across the diode is 2.45 V, and the resistance of the resistor is 750 kΩ. The junction contact potential is 0.6 V, and the zero bias capacitance is 67.4 nF.
The switch is suddenly opened. What is most nearly the transient time constant of the diode-resistor loop at the instant the switch is opened?
Browse-only — this topic has not been backfilled with correct-answer flags yet, so the quiz runner cannot score it.
A. 22 ms
B. 25 ms
C. 31 ms
D. 210 ms