JEE Main 2019PhysicsSemiconductorsMediumMCQ

JEE Main 2019 — Semiconductors Question with Solution

JEE Main 2019 (12 Apr Shift 2)

Question

Figure shows a DC voltage regulator circuit, with a Zener diode of breakdown voltage =6 V . If the unregulated input voltage varies between 10 V to 16 V, then what is the maximum Zener current?

Choose an option

Show full solutionCorrect option: B
Correct answer
B 3.5 mA

Step-by-step explanation


Current through 2 KΩ is
i = 102000 = 5 mA
Current through 4  KΩ 
iL=i-iz=64000 =1.5 mA
⇒ iz=i-1.5

 ∴iz=5-1.5=3.5 mA

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About this question

This is a previous-year question from JEE Main 2019, covering the Semiconductors chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.