Electronic Devices [GATE (Graduate Aptitude Test in Engineering) Electronics]: Questions 43 - 46 of 161

Access detailed explanations (illustrated with images and videos) to 1176 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

How to register? Already Subscribed?

Question 43

Electronic Devices
MOSFET, LED, Photo Diode and Solar Cell

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

In LED, light is emitted, because (June)

Choices

Choice (4)Response

a.

Diode emits light when gets heated.

b.

Recombination of charge carrier takes place.

c.

Light is made to reflect due to lens action.

d.

LED amplifies the light falling on it.

Question 44

Electronic Devices
MOSFET, LED, Photo Diode and Solar Cell

Appeared in Year: 2013 (UGC-NET)

Question

Match List-Ⅰ List-Ⅱ▾

Match the following: (June)

List-Ⅰ (Column-I)List-Ⅱ (Column-II)
(A)

LASER

(i)

Spontaneous emission

(B)

Solar Cell

(ii)

Stimulated emission

(C)

LED

(iii)

Power generator

(D)

Photo diode

(iv)

Detector

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (iv)
  • (i)
  • (ii)

b.

  • (iii)
  • (ii)
  • (iv)
  • (i)

c.

  • (ii)
  • (iii)
  • (i)
  • (iv)

d.

  • (iv)
  • (iii)
  • (i)
  • (ii)

Question 45

Electronic Devices
MOSFET, LED, Photo Diode and Solar Cell

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

The data can be transmitted by following means: (June)

1. Coaxial cables

2. MMF

3. SMF

4. Twisted wire cable

The correct sequence in the increasing order of Bandwidth is

Choices

Choice (4)Response

a.

1,4, 2,3

b.

2,3, 1,4

c.

4,1, 2,3

d.

4,1, 3,2

Question 46

Electronic Devices
P-N Junction,Zener Diode,BJT,MOS Capacitor

Appeared in Year: 2013 (UGC-NET)

Question

MCQ▾

Zener diode is a (June)

Choices

Choice (4)Response

a.

Forward biased diode

b.

Constant current source

c.

Reverse biased diode

d.

Variable voltage source

Developed by: