Physics · JEE

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

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Part of Electronic Devices in JEE Main Physics.

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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

=6 V .

If the unregulated input voltage varies between

10 V

16 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

\boldsymbol{R}_{L}

and the input voltage varies in between

10 \mathrm{V}

15 \mathrm{V} .

The load current also varies from 5

\mathrm{mA}

50 \mathrm{mA}

. Find the value of series resistance R. Given,

\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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Why practise PYQs for I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator?

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Our bank includes exam-style MCQs aligned with JEE Main Physics syllabus for I-V characteristics of LED, the photodiode, solar cell, Zener diode, Zener diode as a voltage regulator, covering the same topics as previous year papers.

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Solve timed sets, review every explanation, note weak subtopics, then revisit with focused practice on Goodmarks.

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