In the following, which one of the diodes is reverse  biased? Option 1)    Option 2) Option 3) Option 4)

As we have learnt,

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

Correct option is 1

In all other figure, diode is forward biased.

Option 1)

Option 2)

Option 3)

Option 4)

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