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)
=4.9996 V ≈5V
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