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Keeping forward bias voltage from 0.6 V ...

Keeping forward bias voltage from 0.6 V to 0.7 V in a p-n junction diode its current become 1 mA to 3mA. The dynamic resistance of diode is …….

A

`50Omega`

B

`500Omega`

C

`600Omega`

D

`233Omega`

Text Solution

Verified by Experts

The correct Answer is:
A
`50Omega`
Resistance in forward bias (dynamic resistance)
`r_(fb)=(DeltaV)/(DeltaI)`
`r_(fb)=(0.1)/(2xx10^(-3))[because DeltaV=0.7-0.6=0.1V and DeltaI-3-1=2mA]`
`therefore r_(fb)=50Omega`
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