1

GATE ECE 2014 Set 1

Numerical

+1

-0

When the optical power incident on a photodiode is 10μW and the responsivity is 0.8 A/W,
the photocurrent generated (in μA) is ________.

Your input ____

2

GATE ECE 2013

MCQ (Single Correct Answer)

+1

-0.3

In a forward biased P-N junction diode, the sequence of events that best describes
the mechanism of current flow is

3

GATE ECE 2008

MCQ (Single Correct Answer)

+1

-0.3

Which of the following is NOT associated with a P-N junction?

4

GATE ECE 2008

MCQ (Single Correct Answer)

+1

-0.3

In the following limiter circuit, an input voltage $${\mathrm V}_\mathrm i\;=\;10\sin\left(100\mathrm{πt}\right)$$ applied. Assume
that the diode drop is 0.7V when it is forward biased. The Zener breakdown
voltage is 6.8V.

The maximum and minimum values of the output voltage respectively are

Questions Asked from PN Junction (Marks 1)

Number in Brackets after Paper Indicates No. of Questions

GATE ECE Subjects

Network Theory

Control Systems

Electronic Devices and VLSI

Analog Circuits

Digital Circuits

Microprocessors

Signals and Systems

Representation of Continuous Time Signal Fourier Series
Fourier Transform
Continuous Time Signal Laplace Transform
Discrete Time Signal Fourier Series Fourier Transform
Discrete Fourier Transform and Fast Fourier Transform
Discrete Time Signal Z Transform
Continuous Time Linear Invariant System
Discrete Time Linear Time Invariant Systems
Transmission of Signal Through Continuous Time LTI Systems
Sampling
Transmission of Signal Through Discrete Time Lti Systems
Miscellaneous

Communications

Electromagnetics

General Aptitude