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1
GATE ECE 2015 Set 3
MCQ (Single Correct Answer)
+2
-0.6
The electric field profile in the depletion region of a p-n junction in equilibrium is shown in the figure. Which one of the following statements is NOT TRUE? GATE ECE 2015 Set 3 Electronic Devices and VLSI - PN Junction Question 5 English
A
The left side of the junction is n-type and the right side is p-type
B
Both the n-type and p-type depletion regions are uniformly doped
C
The potential difference across the depletion region is 700 mV
D
If the p-type region has a doping concentration of 1015 cm–3 , then the doping concentration in the n-type region will be 1016 cm–3
2
GATE ECE 2015 Set 1
Numerical
+2
-0
The built-in potential of an abrupt p-n junction is 0.75V. If its junction capacitance (CJ) at a reverse bias (VR) of 1.25V is 5pF, the value of CJ (in pF) when VR = 7.25V is ___________.
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3
GATE ECE 2014 Set 2
Numerical
+2
-0
Consider an abrupt PN junction (at T = 300 K) shown in the figure. The depletion region width Xn on the N-side of the junction is 0.2 µm and the permittivity of silicon (εsi) is 1.044×10-12 F/cm. At the junction, the approximate value of the peak electric field (in kV/cm) is _________. GATE ECE 2014 Set 2 Electronic Devices and VLSI - PN Junction Question 7 English
Your input ____
4
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown below, the knee current of the ideal Zener diode is 10 mA. To maintain 5V across RL, the minimum value of RL in Ω and the minimum power rating of the Zener diode in mW, respectively, are GATE ECE 2013 Electronic Devices and VLSI - PN Junction Question 8 English
A
125 and 125
B
125 and 250
C
250 and 125
D
250 and 250
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GATE ECE Subjects
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
Network Theory
Network Elements Network Theorems Transient Response Sinusoidal Steady State Response Two Port Networks Network Graphs State Equations For Networks Miscellaneous
Control Systems
Basic of Control Systems Signal Flow Graph and Block Diagram Time Response Analysis Stability Root Locus Diagram Frequency Response Analysis Compensators State Space Analysis
Digital Circuits
Logic Gates Boolean Algebra Analog to Digital and Digital to Analog Converters Sequential Circuits Combinational Circuits Logic Families Number System and Code Convertions Semiconductor Memories
General Aptitude
Numerical Ability Verbal Ability
Electronic Devices and VLSI
Semiconductor Physics PN Junction BJT and FET IC Basics and MOSFET
Analog Circuits
Bipolar Junction Transistor FET and MOSFET Oscillators Operational Amplifier 555 Timer Frequency Response Diodes Feedback Amplifier Power Amplifier
Engineering Mathematics
Linear Algebra Calculus Vector Calculus Probability and Statistics Differential Equations Complex Variable Numerical Methods Transform Theory
Microprocessors
Instruction Set and Programming with 8085 Pin Details of 8085 and Interfacing with 8085
Communications
Fundamentals of Information Theory Noise In Digital Communication Analog Communication Systems Digital Communication Systems Random Signals and Noise
Electromagnetics
Waveguides Antennas Miscellaneous Transmission Lines Maxwell Equations Uniform Plane Waves
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