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The V-I characteristics of a silicon diode is shown in figure. Calculate the resistance of the diode at (a) ID = 15 mA and (b) VD. = -10V.

The V-I characteristics of a silicon diode is shown in figure. Calculate the resistance of the diode at (a) ID = 15 mA and (b) VD. = -10V.

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1 Answers

Khimraj
3007 Points
6 years ago
Resistance of diode is given by \DeltaV/\DeltaI. So
(a) at ID = 15mA
 R = (0.8-0.7)V/(20-10)mA = 10 \Omega
(b) at VD = -10V
      \DeltaI = 0
     So R is infinite.
Hope it clears. If you like answer then please approve it.
 

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