JEE Main 2015PhysicsSemiconductorsMediumMCQ

JEE Main 2015 — Semiconductors Question with Solution

JEE Main 2015 (11 Apr Online)

Question

The value of the resistor, RS, needed in the DC voltage regulator circuit shown here, equals:

Choose an option

Show full solutionCorrect option: D
Correct answer
DVi-VLn+1IL

Step-by-step explanation



Across zener diode VL=constant

∵Vi=VL+n+1IL RS

⇒Vi-VL=n+1IL RS

⇒RS=Vi-VLn+1IL

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About this question

This is a previous-year question from JEE Main 2015, 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.