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

8+ syllabus-aligned questions available

Quick answer

Short tricks for I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator work only with strong fundamentals. Apply the tips below in timed sets and review every explanation.

Use these I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator shortcuts to save time in JEE Physics papers — then validate speed with 8+ MCQs on Goodmarks.

Short tricks for speed

  • I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator focus drill

    Solve 15 mixed MCQs for I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator, review every explanation, and note formulas you hesitated on.

  • Dimensional check first

    Before solving, verify each term has consistent SI dimensions — eliminates wrong options quickly in JEE MCQs.

  • Limiting cases

    Substitute extreme values (t→0, m→∞, θ→0) to sanity-check your final expression.

Syllabus context

Part of Electronic Devices in JEE Main Physics.

Free sample questions

Attempt 8 free MCQs for I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator. Unlock the full bank with Pro.

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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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Frequently asked questions

Are short tricks enough for I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator in JEE?

No — tricks complement concepts. Master the theory first, then use shortcuts in timed MCQ practice.

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