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I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator Revision for JEE

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Revise I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator by covering every subtopic once, drilling formulas, then solving 8+ timed MCQs with full solutions.

Use this I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator revision checklist before mocks and the final exam. Reinforce concepts with 8+ syllabus-aligned MCQs on Goodmarks.

Revision checklist

  1. 1.Core idea: I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator
  2. 2.Relates to other subtopics in Electronic Devices
  3. 3.Semiconductor diode I-V curves
  4. 4.LED, photodiode, solar cell, Zener diode
  5. 5.Master I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator definitions and standard results
  6. 6.Solve 20 timed MCQs for I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator

Syllabus context

Part of Electronic Devices in JEE Main Physics.

Free sample questions

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Q1PhysicsUnit 19: Electronic Devices
The colour of light emitted by an LED depends on
Q2PhysicsUnit 19: Electronic Devices
Figure shown a DC voltage regulator circuit, with a Zener diode of breakdown voltage =6V.=6 V . If the unregulated input voltage varies between 10V10 V to 16V16 V then what is the maximum Zener current?
Q3PhysicsUnit 19: Electronic Devices
The operation of a solar cell requires:
Q4PhysicsUnit 19: Electronic Devices
Photodiode is a device
Q5PhysicsUnit 19: Electronic Devices
Assertion Photodiode and solar cell work on same mechanism. Reason Area is large for solar cell.
Q6PhysicsUnit 19: Electronic Devices
The attached figure shows the characteristics of:
Q7PhysicsUnit 19: Electronic Devices
A 5 V zener diode is used to regulate the voltage across load resistor RL\boldsymbol{R}_{L} and the input voltage varies in between 10V10 \mathrm{V} to 15V.15 \mathrm{V} . The load current also varies from 5 mA\mathrm{mA} to 50mA50 \mathrm{mA}. Find the value of series resistance R. Given, IZ(min)=20mA\boldsymbol{I}_{Z}(\boldsymbol{m} \boldsymbol{i} \boldsymbol{n})=\boldsymbol{2} \boldsymbol{0} \boldsymbol{m} \boldsymbol{A}
Q8PhysicsUnit 19: Electronic Devices
The typical operating current for a lightemitting diode is approximately:

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Follow the checklist on this page, revise formulas daily, and attempt mixed MCQs every 2–3 days.

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