1

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

2

GATE ECE 2007

MCQ (Single Correct Answer)

+1

-0.3

In a p

^{+}n junction diode under reverse bias, the magnitude of electric field is maximum at3

GATE ECE 2002

MCQ (Single Correct Answer)

+1

-0.3

In the figure, a silicon diode is carrying a constant current of 1 mA. When the
temperature of the diode is 20°C, V

_{D}is found to be 700 mV. If the temperature rises to 40°C, V_{D}becomes approximately equal to4

GATE ECE 1998

MCQ (Single Correct Answer)

+1

-0.3

The static characteristic of an adequately forward biased p-n junction is a straight
line, if the plot is of

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

Communications

Electromagnetics

General Aptitude