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The graph given below represents the I-V characteristics of a zener diode. Which part of the curve is relevant for operation as voltage regulator?


$(a)\;a-b \\ (b)\;b-c \\ (c)\;c-d \\ (d)\;d-e $

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Zener diode is used in reverse bias and need a constant voltage for voltage regulation.
So $a-b$ is the relevant part
Hence a is the correct answer.
answered Jan 31, 2014 by meena.p

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