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MHT CET 2019 (3 May, Shift 1) · Special Purpose Diodes

Special Purpose Diodes question from MHT CET 2019 (3 May, Shift 1)

Q78MHT CET 2019 · 3 MAY · SHIFT 1Easy

Special Purpose Diodes

$V - I$ characterstics of LED is shown correctly by graph

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Answer: (b)

An LED is operated in forward bias, so only the first quadrant is drawn.
Current stays near zero up to the threshold voltage and then rises steeply.
Graph (b) shows this; (a) has a reverse breakdown branch, (c) is a solar cell, (d) saturates.
So the answer is (b).

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