JEE Main 2018PhysicsSemiconductorsEasyMCQ

JEE Main 2018 — Semiconductors Question with Solution

JEE Main 2018 (08 Apr)

Question

The reading of the ammeter for a silicon diode in the given circuit is:

Choose an option

Show full solutionCorrect option: D
Correct answer
D11.5 mA

Step-by-step explanation

Given, R=200 Ω and V=3 V. We have to calculate the current. We know that, a potential barrier across silicon diode =0.7 V.

V=IR⇒I=3-0.7200=0.0115 A=11.5 mA

So, the current is 11.5 mA.

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About this question

This is a previous-year question from JEE Main 2018, 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.