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In P-N junction V-I characteristics during forward biased, at what region the current increase is very low.

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In P-N junction V-I characteristics during forward biased, at what region the current increase is very low.

(a) Saturation

(b) Depletion

(c) Cut off

(d) Breakdown

I had been asked this question in an interview.

This is a very interesting question from The Volt Ampere Characteristics topic in division Semiconductor-Diode Characteristics of Electronic Devices & Circuits

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The correct option is (b) Depletion

Easy explanation: In the V-I characteristics the change in the current with respect to voltage is very less in depletion region due to the large resistance in the circuit as the resistance deceases by a certain value the current increases exponentially with voltage.

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