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Calculate the DC resistance of diode at VD= -10V from the characteristic graph given below.

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Calculate the DC resistance of diode at VD= -10V from the characteristic graph given below.

(a) 1MΩ

(b) 10MΩ

(c) 15MΩ

(d) 5MΩ

This question was addressed to me in a national level competition.

I'd like to ask this question from Resistance Level in division Diode Circuit of Analog Circuits

1 Answer

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The correct answer is (b) 10MΩ

The explanation: Static or DC resistance is the resistance of a diode at its operating point.

Static resistance at -10V = 10V/current at -10V = 10/1µA = 10MΩ.

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