Answer :

From the given circuit diagram, we can see that the diode is reverse biased.

Drift current = Diffusion current = 20 μA


Current through the circuit =20 μA


Voltage drop across the 20Ω resistor = 20μA×20Ω


= 4×10-4 V


Voltage through the circuit= (Voltage from the source)–(Voltage drop across the 20Ω resistor)


=5-0.0004


=4.9996 V ≈5V


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