Electronics MCQ Questions for CSIR NET and GATE Physics

This article contains a quiz with 10 MCQs from Physics chapter Electronics.

• Total Questions = 10
• Total Marks = 40
• Correct Answer = +4 Marks
• Incorrect Answer = -1 Marks

Electronics MCQs for CSIR NET & GATE Test 1

---

Question 1.

While analyzing circuits with a diode, the graphical method is often used because
(1) graphs give more accurate answer than solutions of equations
(2) nodal or mesh analysis can not be used for the non-linear diode circuits
(3) solution of circuits equations leads to multiple answer, which is unphysical
(4) the non-linear diode equation makes the solution of the circuit equations very difficult.

1

2

3

4

---

Question 2.

V_i is given by

The input Vi is given to the circuit shown below:

V_i is:
(1) 
(2) 
(3) 
(4) None

1

2

3

4

---

Question 3.

Calculate ID and ID2 in the circuit shown below. Assume the diodes are ideal

(1) ID₁ = –0.5A; ID₂ = IA
(2) ID₁ = 0 A; ID₂ = IA
(3) ID₁ = –0.5 A; ID₂ = 2 A
(4) ID₁ = 0 A; ID₂ = 2 A

1

2

3

4

---

Question 4.

Calculate the current ID in the circuit shown below

(1) 1 mA
(2) -1 mA
(3) 0
(4) 2 mA

1

2

3

4

---

Question 5.

The width of the depletion layer is proportion to
(1) √Doping
(2) 1/√Doping
(3) Doping
(4) 1/Doping

1

2

3

4

---

Question 6.

Which of the following option is correct for P + N diode shown below:

(1) W₂ = W₁
(2) W₁ > ₂
(3) W₁ < W₂
(4) W₁ = W₂ = 0

1

2

3

4

---

Question 7.

The transition capacitance of a diode is proportion to
(1) 1/√Reverse bias
(2) 1/Reverse bias
(3) Reverse bias
(4) √Reverse bias

1

2

3

4

---

Question 8.

The circuit in figure is

(1) Positive Clamber
(2) Negative Clamber
(3) Positive peak clipper
(4) Negative peak clipper

1

2

3

4

---

Question 9.

A n-p-n transistor can be considered to be equived to two diodes as shown in figure.
(1) 
(2) 
(3) 
(4) 

1

2

3

4

---

Question 10.

Which one of the following circuits shows correct biasing of a p-n-p transistor to operate in active region in the CE mode?
(1) 
(2) 
(3) 
(4) 

1

2

3

4

---

Return to-

• Physics Chapterwise & Topicwise MCQs
• Physics All Study Material for NET, GATE and IIT JAM

For further questions queries or suggestions, please leave your comments below.