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Previous year question hub

Electronic Devices - Modern Physics - Physics Previous Year Questions

Practice Electronic Devices - Modern Physics - Physics previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

13Papers
12Years
27Questions
1Topics

Electronic Devices question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Electronic Devices. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 31 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 31 100%

Subject weightage

Top subjects by unique question coverage.

Physics
27 Qs

Most asked topics

Top topics across the included previous year papers.

Modern Physics
27 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Electronic Devices
27 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

WB JEE 2026
4 Qs
WB JEE 2026
4 Qs
WB JEE 2025
3 Qs
WB JEE 2024
2 Qs
WB JEE 2023
2 Qs
WB JEE 2022
2 Qs
WB JEE 2021
2 Qs
WB JEE 2020
2 Qs
WB JEE 2019
2 Qs
WB JEE 2018
2 Qs
WB JEE 2017
2 Qs
WB JEE 2016
2 Qs
WB JEE 2008
2 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
WB JEE 202620264View paper
WB JEE 202620264View paper
WB JEE 202520253View paper
WB JEE 202420242View paper
WB JEE 202320232View paper
WB JEE 202220222View paper
WB JEE 202120212View paper
WB JEE 202020202View paper
WB JEE 201920192View paper
WB JEE 201820182View paper
WB JEE 201720172View paper
WB JEE 201620162View paper
WB JEE 200820082View paper

All Electronic Devices previous year questions

Practice every matching question in batches of 20, with every available option.

1
2016 · Physics · Modern Physics · Electronic Devices
WB JEE 2016
A Zener diode having break-down voltage 5.6 V is connected in reverse bias with a battery of emf 10 V and a resistance of 100 \(\Omega\) in series. The current flowing through the Zener diode is
A
88 mA
B
0.88 mA
C
4.4 mA
D
44 mA
Open complete paper
2
2016 · Physics · Modern Physics · Electronic Devices
WB JEE 2016
In case of a bipolar transistor \(\beta\) = 45. The potential drop across the collector resistance of 1 k\(\Omega\) is 5V. The base current is approximately
A
222 \(\mu\) A
B
55 \(\mu\) A
C
111 \(\mu\) A
D
45 \(\mu\) A
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3
2017 · Physics · Modern Physics · Electronic Devices
WB JEE 2017
WB JEE 2017 Physics - Electronic Devices Question 18 English
In the given circuit, the binary inputs at A and B are both 1 in one case and both 0 in the next case. The respective outputs at Y in these two cases will be
A
1, 1
B
0, 0
C
0, 1
D
1, 0
Open complete paper
4
2017 · Physics · Modern Physics · Electronic Devices
WB JEE 2017
When a semiconducting device is connected in series with a battery and a resistance, a current is found to flow in the circuit. If however, the polarity of the battery is reversed, practically no current flows in the circuit. The device may be
A
a p-type semiconductor
B
a n-type semiconductor
C
an intrinsic semiconductor
D
a p-n junction
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5
2018 · Physics · Modern Physics · Electronic Devices
WB JEE 2018
What will be the current flowing through the 6k\(\Omega\) resistor in the circuit shown, where the breakdown voltage of the Zener is 6V?

WB JEE 2018 Physics - Electronic Devices Question 22 English
A
\({2 \over 3}mA\)
B
1 mA
C
10 mA
D
\({3 \over 2}mA\)
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6
2018 · Physics · Modern Physics · Electronic Devices
WB JEE 2018
In the circuit shown, inputs A and B are in states 1 and 0 respectively. What is the only possible stable state of the outputs X and Y?

WB JEE 2018 Physics - Electronic Devices Question 20 English
A
X = 1, Y = 1
B
X = 1, Y = 0
C
X = 0, Y = 1
D
X = 0, Y = 0
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7
2019 · Physics · Modern Physics · Electronic Devices
WB JEE 2019
Each of the two inputs A and B can assume values either 0 or 1. Then which of the following will be equal to \(\overline {A\,}\) . \(\overline {B\,}\)?
A
A + B
B
\(\overline {A + B}\)
C
\(\overline {A . B}\)
D
\(\overline {A\,}\) + \(\overline {B\,}\)
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8
2019 · Physics · Modern Physics · Electronic Devices
WB JEE 2019
In the circuit shown, what will be the current through the 6V zener?

WB JEE 2019 Physics - Electronic Devices Question 25 English
A
6 mA, from A to B
B
2 mA, from A to B
C
2 mA, from B to A
D
Zero
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9
2020 · Physics · Modern Physics · Electronic Devices
WB JEE 2020
A common emitter transistor amplifier is connected with a load resistance of 6 k\(\Omega\) . When a small AC signal of 15 mV is added to the base-emitter voltage, the alternating base current is 20\(\mu\)A and the alternating collector current is 1.8 mA. What is the voltage gain of the amplifier?
A
90
B
640
C
900
D
720
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10
2020 · Physics · Modern Physics · Electronic Devices
WB JEE 2020
WB JEE 2020 Physics - Electronic Devices Question 27 English
In the circuit shown, the value of \(\beta\) of the transistor is 48. If the supplied base current is 200 \(\mu\)A, what is the voltage at the terminal Y?
A
0.2 V
B
0.5 V
C
4 V
D
4.8 V
Open complete paper
11
2021 · Physics · Modern Physics · Electronic Devices
WB JEE 2021
WB JEE 2021 Physics - Electronic Devices Question 16 English
For the given logic circuit, the output Y for inputs (A = 0, B = 1) and (A = 0, B = 0) respectively are
A
0, 0
B
0, 1
C
1, 0
D
1, 1
Open complete paper
12
2021 · Physics · Modern Physics · Electronic Devices
WB JEE 2021
WB JEE 2021 Physics - Electronic Devices Question 17 English
What is the value of current through the diode in the circuit given?
A
Zero
B
1 mA
C
19 mA
D
9 mA
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13
2022 · Physics · Modern Physics · Electronic Devices
WB JEE 2022

The expression \(\overline A (A + B) + (B + AA)(A + \overline B )\) simplifies to

A
A + B
B
AB
C
\(\overline {A + B}\)
D
\(\overline A + \overline B\)
Open complete paper
14
2022 · Physics · Modern Physics · Electronic Devices
WB JEE 2022

A Zener diode having break down voltage Vz = 6V is used in a voltage regulator circuit as shown in the figure. The minimum current required to pass through the Zener to act as a voltage regulator is 10 mA and maximum allowed current through Zener is 40 mA. The maximum value of Rs for Zener to act as a voltage regulator is

WB JEE 2022 Physics - Electronic Devices Question 15 English

A
100 \(\Omega\)
B
400 \(\Omega\)
C
0.4 \(\Omega\)
D
950 \(\Omega\)
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15
2023 · Physics · Modern Physics · Electronic Devices
WB JEE 2023

WB JEE 2023 Physics - Electronic Devices Question 11 English

In the given circuit, find the voltage drop \(\mathrm{V_L}\) in the load resistance \(\mathrm{R_L}\).

A
5 V
B
3 V
C
9 V
D
6 V
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16
2023 · Physics · Modern Physics · Electronic Devices
WB JEE 2023

WB JEE 2023 Physics - Electronic Devices Question 10 English

Consider the logic circuit with inputs A, B, C and output Y. How many combinations of A, B and C gives the output Y = 0 ?

A
8
B
5
C
7
D
1
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17
2024 · Physics · Modern Physics · Electronic Devices
WB JEE 2024

A \(2 \mathrm{~V}\) cell is connected across the points \(\mathrm{A}\) and \(\mathrm{B}\) as shown in the figure. Assume that the resistance of each diode is zero in forward bias and infinity in reverse bias. The current supplied by the cell is

WB JEE 2024 Physics - Electronic Devices Question 8 English

A
0.5 A
B
0.2 A
C
0.1 A
D
0.25 A
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18
2024 · Physics · Modern Physics · Electronic Devices
WB JEE 2024

In the given network of AND and OR gates, output Q can be written as (assuming n even)

WB JEE 2024 Physics - Electronic Devices Question 9 English

A
\(\mathrm{X}_0 \mathrm{X}_1+\mathrm{X}_2 \mathrm{X}_3+\ldots \mathrm{X}_{\mathrm{n}-1} \mathrm{X}_{\mathrm{n}}\)
B
\(\mathrm{X}_0 \mathrm{X}_1 \ldots \mathrm{X}_{\mathrm{n}}+\mathrm{X}_1 \mathrm{X}_2 \ldots \mathrm{X}_{\mathrm{n}}+\mathrm{X}_2 \mathrm{X}_3 \ldots \mathrm{X}_{\mathrm{n}}+\mathrm{X}_{\mathrm{n}}\)
C
\(\mathrm{X}_0 \mathrm{X}_1 \ldots \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_{\mathrm{n}-2} \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_{\mathrm{n}}\)
D
\(\mathrm{X}_0 \mathrm{X}_1 \ldots \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_2 \mathrm{X}_3 \mathrm{X}_5 \ldots \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_{\mathrm{n}-2} \mathrm{X}_{\mathrm{n}-1}+\mathrm{X}_{\mathrm{n}}\)
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19
2025 · Physics · Modern Physics · Electronic Devices
WB JEE 2025

A diode is connected in parallel with a resistance as shown in Figure. The most probable current (I) - voltage (V) characteristic is

WB JEE 2025 Physics - Electronic Devices Question 7 English

A
WB JEE 2025 Physics - Electronic Devices Question 7 English Option 1
B
WB JEE 2025 Physics - Electronic Devices Question 7 English Option 2
C
WB JEE 2025 Physics - Electronic Devices Question 7 English Option 3
D
WB JEE 2025 Physics - Electronic Devices Question 7 English Option 4
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20
2025 · Physics · Modern Physics · Electronic Devices
WB JEE 2025

Manufacturers supply a zener diode with zener voltage $\mathrm{V}_{\mathrm{z}}=5.6 \mathrm{~V}$ and maximum power dissipation $P_{\mathrm{z}, \max }=\frac{1}{4} \mathrm{~W}$. This zener diode is used in the following circuit. Calculate the minimum value of the resistance $R_s$ in the circuit so that the zener diode will not burn when the input voltage is $\mathrm{V}_{\mathrm{in}}=10 \mathrm{~V}$.

WB JEE 2025 Physics - Electronic Devices Question 6 English

A
$98.56 \Omega$
B
$170 \cdot 52 \Omega$
C
$306 \cdot 21 \Omega$
D
$412.37 \Omega$
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Showing 20 of 27 questions