1

GATE ECE 2015 Set 1

MCQ (Single Correct Answer)

+1

-0.3

A region of negative differential resistance is observed in the current voltage characteristics
of a silicon PN junction if

2

GATE ECE 2015 Set 1

Numerical

+1

-0

In the circuit shown below, the Zener diode is ideal and the Zener voltage is 6V. The output
voltage V

_{0}(in volts) is ________.Your input ____

3

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 ____

4

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

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