# The approximate ratio of resistances in the forward and reverse bias of the PN-junction diode is Option 1) $10^{2}:1$ Option 2) $10^{-2}:1$ Option 3) $1:10^{-4}$ Option 4) $1:10^{4}$

P Prateek Shrivastava

As we learnt in

P -N junction as diode -

It is a one way device. It offers a low resistance when forward biased and high resistance when reverse biased.

- wherein

R = 0, Forward

$\rightarrow \infty$ Reverse

Ratio of forward to reverse bias resistance is of the order of  $1:10^{4}$

Option 1)

$10^{2}:1$

Incorrect

Option 2)

$10^{-2}:1$

Incorrect

Option 3)

$1:10^{-4}$

Incorrect

Option 4)

$1:10^{4}$

Correct

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