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Zener Diode as Voltage Stabilizer

What happens ...

Question

What happens during regulation action of Zener diode?

The current in and voltage across the Zener remains fixed

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The current through the series Resistance (

R_{s}

) changes

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The Zener resistance is constant

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The resistance offered by the Zener diode changes

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Solution

The correct options are
B The current through the series Resistance ( $R_{s}$ ) changes
D The resistance offered by the Zener diode changes
During action of regulation, current $R_{s}$ changes and resistance offered by Zener diode changes. The current through the Zener diode changes but voltage across the Zener remains constant .

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