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Which of the following models of diode equivalent circuit is represented by the given I-V characteristic curve?

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Which of the following models of diode equivalent circuit is represented by the given I-V characteristic curve?

(a) Piecewise Linear Model

(b) Ideal Diode Model

(c) Simplified Model

(d) Hybrid model

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Question is from Diode Basics and Equivalent Circuits topic in chapter Diode Circuit of Analog Circuits

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Right answer is (c) Simplified Model

Best explanation: In simplified model, the value of rd is neglected and hence, we get a high value of current for voltage greater than or equal to VT.

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