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Physics - Semiconductors Question with Solution | TestHub

PhysicsSemiconductorsPN junctionEasy2 minPYQ_2020

PhysicsEasysingle choice

A Zener diode, having breakdown voltage equal to $15 V$ is used in a voltage regulator circuit shown in the figure. The current through the diode is

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Answer:

Solution:

For $R = 1 kΩ$

$i_{1} = \frac{15}{1} mA = 15 mA$

For $R = 250 Ω$

$i_{250} = \frac{20 - 15}{250} = \frac{5}{250}$

$= \frac{20}{1000} = 20 m A$

$i_{z e n e r} = 20 - 15$

$= 5 mA$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:SemiconductorsSubtopic:PN junction

⏱ 2mℹ️ Source: PYQ_2020

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