Semiconductor Electronics PYQs - Last 5 Years
NEET / Physics / Modern Physics / 27 recent questions
PhysicsModern Physics2022-2026
Practice 27 NEET Physics questions from Semiconductor Electronics. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Last 5 Years Semiconductor Electronics Questions
Showing 27 of 27 filtered questions.
1Semiconductor Electronics
Three identical p-n junction diodes $D_1, D_2$, and $D_3$ are connected across a battery as shown in the figure. If the width of the depletion regions of $D_1, D_2$ and $D_3$ are $W_1, W_2$ and $W_3$, respectively, then the correct option i...
MCQ+4 / -12026
2Semiconductor Electronics
An ideal Zener diode with breakdown voltage of -3 V is reverse biased with a negative input voltage $V_i=-5 \mathrm{~V}$. The magnitude of voltage difference between point $B$ and $A$ is:
MCQ+4 / -12026
3Semiconductor Electronics
Two statements are given below:
A. When the forward bias voltage across a p-n junction diode increases above a certain threshold voltage, the diode current increases significantly.
B. This current is called reverse saturation current.
Choos...
A. When the forward bias voltage across a p-n junction diode increases above a certain threshold voltage, the diode current increases significantly.
B. This current is called reverse saturation current.
Choos...
MCQ+4 / -12026
4Semiconductor Electronics
\(\text { In the circuit shown below, the voltage appearing across the diode } D \text { will be of the form: }\)
MCQ+4 / -12026
5Semiconductor Electronics
The current / in the circuit shown below is: (All diodes are ideal and identical)
MCQ+4 / -12026
6Semiconductor Electronics
A full wave rectifier circuit with diodes $\left(D_1\right)$ and $\left(D_2\right)$ is shown in the figure. If input supply voltage $\mathrm{V}_{\text {in }}=220 \sin (100 \pi t)$ volt, then at $t=15 \mathrm{msec}$
MCQ+4 / -12025
7Semiconductor Electronics
The output ( $Y$ ) of the given logic implementation is similar to the output of an/a ________ gate.
MCQ+4 / -12025
8Semiconductor Electronics
The output Y for the inputs A and B of the given logic circuit is:
MCQ+4 / -12024
9Semiconductor Electronics
The I-V characteristics shown above are exhibited by a
MCQ+4 / -12024
10Semiconductor Electronics
When the output of an OR gate is applied as input to a NOT gate, then the combination acts as a
MCQ+4 / -12024
11Semiconductor Electronics
Consider the following statements A and B and identify the correct answer :
A. For a solar-cell, the I-V characteristics lies in the IV quadrant of the given graph.
B. In a reverse biased \(p n\) junction diode, the current measured in $$(...
A. For a solar-cell, the I-V characteristics lies in the IV quadrant of the given graph.
B. In a reverse biased \(p n\) junction diode, the current measured in $$(...
MCQ+4 / -12024
12Semiconductor Electronics
A logic circuit provides the output \(Y\) as per the following truth table :
The expression of the output Y is :
The expression of the output Y is :
MCQ+4 / -12024
13Semiconductor Electronics
\(\text { The output ( } Y \text { ) of the given logic gate is similar to the output of an/a }\)
MCQ+4 / -12024
14Semiconductor Electronics
The above figure shows the circuit symbol of a transistor. Select the correct statements given below:
(A) The transistor has two segments of p-type semiconductor separated by a segment of n-type semiconductor.
(B) The emitter is of moderat...
MCQ+4 / -12023
15Semiconductor Electronics
A p-type extrinsic semiconductor is obtained when Germanium is doped with:
MCQ+4 / -12023
16Semiconductor Electronics
The given circuit is equivalent to:
MCQ+4 / -12023
17Semiconductor Electronics
On the basis of electrical conductivity, which one of the following material has the smallest resistivity?
MCQ+4 / -12023
18Semiconductor Electronics
For the following logic circuit, the truth table is:
MCQ+4 / -12023
19Semiconductor Electronics
A full wave rectifier circuit consists of two p-n junction diodes, a centre-tapped transformer, capacitor and a load resistance. Which of these components remove the ac ripple from the rectified output?
MCQ+4 / -12023
20Semiconductor Electronics
Given below are two statements:
Statement I : Photovoltaic devices can convert optical radiation into electricity.
Statement II : Zener diode is designed to operate under reverse bias in breakdown region.
In the light of the above statement...
Statement I : Photovoltaic devices can convert optical radiation into electricity.
Statement II : Zener diode is designed to operate under reverse bias in breakdown region.
In the light of the above statement...
MCQ+4 / -12023
21Semiconductor Electronics
The collector current in a common base amplifier using n-p-n transistor is 24 mA. If 80% of the electrons released by the emitter is accepted by the collector, then the base current is numerically :
MCQ+4 / -12022
22Semiconductor Electronics
The incorrect statement about the property of a Zener diode is :
MCQ+4 / -12022
23Semiconductor Electronics
Identify the equivalent logic gate represented by the given circuit
MCQ+4 / -12022
24Semiconductor Electronics
The truth table for the given logic circuit is
MCQ+4 / -12022
25Semiconductor Electronics
In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be
MCQ+4 / -12022
26Semiconductor Electronics
As the temperature increases, the electrical resistance
MCQ+4 / -12022
27Semiconductor Electronics
In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are equal in
MCQ+4 / -12022