PREVIOUS NEXT
1
GATE ECE 2014 Set 3
MCQ (Single Correct Answer)
+1
-0.3
A thin P-type silicon sample is uniformly illuminated with light which generates excess carriers. The recombination rate is directly proportional to
A
The minority carrier mobility
B
The minority carrier recombination lifetime
C
The majority carrier concentration
D
The excess minority carrier concentration
2
GATE ECE 2011
MCQ (Single Correct Answer)
+1
-0.3
Drift current in the semiconductors depends upon
A
only the electric field
B
only the carrier concentration gradient
C
both the electric field and the carrier concentration
D
both the electric field and the carrier concentration gradient
3
GATE ECE 2008
MCQ (Single Correct Answer)
+1
-0.3
Which of the following is true?
A
A silicon wafer heavily doped with boron is a p+ substrate
B
A silicon wafer lightly doped with boron is a p+ substrate
C
A silicon wafer heavily doped with arsenic is a p+ substrate
D
A silicon wafer lightly doped with arsenic is a p+ substrate
4
GATE ECE 2006
MCQ (Single Correct Answer)
+1
-0.3
The concentration of minority carriers in an extrinsic semiconductor under equilibrium is:
A
directly proportional to the doping concentration
B
inversely proportional to the doping concentration
C
directly proportional to the intrinsic concentration
D
inversely proportional to the intrinsic concentration
PREVIOUS NEXT

GATE ECE Subjects

Browse all chapters by subject

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
Engineering Mathematics
Linear Algebra Calculus Vector Calculus Probability and Statistics Differential Equations Complex Variable Numerical Methods Transform Theory
Analog Circuits
Frequency Response Operational Amplifier Power Amplifier Diodes Oscillators Feedback Amplifier 555 Timer Bipolar Junction Transistor FET and MOSFET
Network Theory
Network Elements Network Theorems Transient Response Sinusoidal Steady State Response Two Port Networks Network Graphs State Equations For Networks Miscellaneous
Electromagnetics
Maxwell Equations Transmission Lines Uniform Plane Waves Antennas Waveguides Miscellaneous
Electronic Devices and VLSI
IC Basics and MOSFET PN Junction BJT and FET Semiconductor Physics
Digital Circuits
Sequential Circuits Number System and Code Convertions Logic Gates Combinational Circuits Semiconductor Memories Logic Families Analog to Digital and Digital to Analog Converters Boolean Algebra
Microprocessors
Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085
Signals and Systems
Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Fourier Transform Representation of Continuous Time Signal Fourier Series Transmission of Signal Through Continuous Time LTI Systems Miscellaneous Sampling Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Discrete Time Signal Z Transform Transmission of Signal Through Discrete Time Lti Systems
Communications
Analog Communication Systems Digital Communication Systems Random Signals and Noise Fundamentals of Information Theory Noise In Digital Communication
General Aptitude
Verbal Ability Logical Reasoning Numerical Ability
EXAM MAP

Browse past year questions by exam & subject

Joint Entrance Examination
JEE Main JEE Advanced MHT CET BITSAT COMEDK WB JEE KCET VITEEE AP EAPCET TS EAMCET IAT (IISER)
Medical
NEET AIIMS MHT CET (Biology)
Graduate Aptitude Test in Engineering
GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN GATE Data Science and Artificial Intelligence
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12