The I-V characteristics of a P -N junction diode is shown in figure. The approximate dynamic resistance (in ) of the P N junction when A forward bias of 1 V is applied.
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As we learn
To draw the I-V characteristics curve of P-N junction In forward bias -
When P side of P-N junction is connected to the positive terminal of source it is said forward biased.
Note: least count and zero error of voltmetre IN.
* P-N Junction a resistance of 10 is connected in series with diode
* Power supply is switched on and P.D across diode increases gradually.
* The value is 0.05 V
The current at 1 v is 10 mA and at 1.2 V is 15 m A. The dynamic resistance is this region is
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