Q. 23

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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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