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The i - V characteristic of a P - N junc...

The i - V characteristic of a P - N junction diode is shown below. The approximate dynamic resistance of the P - N junction when a forward bias of 2 volt is applied

A

`1 Omega`

B

`0.25 Omega`

C

`0.5 Omega`

D

`5 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
`r=(DeltaV)/(DeltaI)=(2.1-2)/((800-400)xx10^(-3))`
`=(0.1)/(400xx10^(-3))=(1)/(4)=0.25Omega`
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