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

Options

A. `1 Omega`
B. `0.25 Omega`
C. `0.5 Omega`
D. `5 Omega`

Answer

B

Explanation

`r=(DeltaV)/(DeltaI)=(2.1-2)/((800-400)xx10^(-3))`
`=(0.1)/(400xx10^(-3))=(1)/(4)=0.25Omega`