GATE (Graduate Aptitude Test in Engineering) Electronics: Questions 149 - 153 of 1076

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Passage

In the circuit shown below, assume that the voltage drop across a forward biased diode is 0.7 V. the thermal voltage the small signal input where

The Four Diodes Connected in Series

Question 149 (2 of 2 Based on Passage)

Appeared in Year: 2007

Question

MCQ▾

The bias current IDC through the diodes is

Choices

Choice (4)Response

a.

1 mA

b.

1.5 mA

c.

2 mA

d.

1.28 mA

Question 150

Appeared in Year: 2012

Question

MCQ▾

The I-v characteristics of the diode in the circuit given below are

The Circuit Consists of a Diode and a Voltage Source

The current in the circuit is

Choices

Choice (4)Response

a.

10 mA

b.

6.67 mA

c.

6.2 mA

d.

9.3 mA

Question 151

Appeared in Year: 2007

Question

MCQ▾

The correct full wave rectifier circuit is

Choices

Choice (4)Response

a.

The Full Wave Rectifier Using Four Diodes: Choice A

b.

The Full Wave Rectifier Using Four Diodes: Choice B

c.

The Full Wave Rectifier Using Four Diodes: Choice C

d.

The Full Wave Rectifier Using Four Diodes: Choice D

Question 152

Clipping, Clamping and Rectifiers

Appeared in Year: 2013

Question

MCQ▾

In the circuit shown below, has negligible collector-to-emitter saturation voltage and the diode drops negligible voltage across it under forward bias. If is + 5 V, X and Y are digital signals with 0 V as logic 0 and as logic 1, then the Boolean expression for Z is

The Circuit Consisting of Transistor & a Diode with 2 Resisters

Choices

Choice (4)Response

a.

b.

c.

XY

d.

Question 153

Appeared in Year: 2007

Question

Match List-Ⅰ List-Ⅱ▾

Group I lists four different semiconductor devices. Match each device in Group I with its characteristic property in Group II.

List-Ⅰ (Device)List-Ⅱ (Characteristic Property)
(A)

LASER diode

(i)

Population inversion

(B)

JFET

(ii)

Pinch-off voltage

(C)

MOS capacitor

(iii)

Flat-band Voltage

(D)

BJT

(iv)

Early effect

Choices

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

a.

  • (ii)
  • (iv)
  • (iii)
  • (i)

b.

  • (i)
  • (ii)
  • (iii)
  • (iv)

c.

  • (iv)
  • (iii)
  • (i)
  • (ii)

d.

  • (iii)
  • (ii)
  • (i)
  • (iv)

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