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JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES
1
Medium
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Understanding
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During regulation action of a Zener diode correct statement is :-
(a) the current and voltage across the Zener remains fixed.
(b) the current through the series resistance changes.
(c) the Zener resistance is constant.
(d) the resistance offered by the Zener diode changes.
(a) the current and voltage across the Zener remains fixed.
(b) the current through the series resistance changes.
(c) the Zener resistance is constant.
(d) the resistance offered by the Zener diode changes.
View answer and explanation
Correct option: D
b and d
Option D (b and d) is correct because during Zener diode regulation, the current through the series resistance changes, and the resistance offered by the Zener diode changes to maintain a constant voltage.
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