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Question

Question: The approximate ratio of resistances in the forward and reverse bias of the PN-junction diode is...

The approximate ratio of resistances in the forward and reverse bias of the PN-junction diode is

A

102:110^{2}:1

B

102:110^{- 2}:1

C

1:1041:10^{- 4}

D

1:1041:10^{4}

Answer

1:1041:10^{4}

Explanation

Solution

Resistance in forward biasing Rfr10ΩR_{fr} \approx 10\Omegaand resistance in reverse biasing RRw105ΩR_{Rw} \approx 10^{5}\OmegaRfrRRw=1104\frac{R_{fr}}{R_{Rw}} = \frac{1}{10^{4}}