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1
GATE EE 2011
MCQ (Single Correct Answer)
+1
-0.3
Circuit turn-off time of an $$SCR$$ is defined as the time
A
taken by the $$SCR$$ turn of
B
required for the $$SCR$$ current to become zero
C
for which the $$SCR$$ is reverse biased by the commutation circuit
D
for which the $$SCR$$ is reverse biased to reduce its current below the holding current
2
GATE EE 2010
MCQ (Single Correct Answer)
+1
-0.3
Figure shows a composite switch consisting of a power transistor $$(BJT)$$ in series with a diode. Assuming that the transistor switch and the diode are ideal, the $$I$$-$$V$$ characteristic of the composite switch is GATE EE 2010 Power Electronics - Power Semiconductor Devices Question 19 English
A
GATE EE 2010 Power Electronics - Power Semiconductor Devices Question 19 English Option 1
B
GATE EE 2010 Power Electronics - Power Semiconductor Devices Question 19 English Option 2
C
GATE EE 2010 Power Electronics - Power Semiconductor Devices Question 19 English Option 3
D
GATE EE 2010 Power Electronics - Power Semiconductor Devices Question 19 English Option 4
3
GATE EE 2009
MCQ (Single Correct Answer)
+1
-0.3
An $$SCR$$ is considered to be a semi - controlled device because
A
it can be turned OFF but not ON with a gate pulse
B
it conducts only during one half - cycle of an alternating current wave
C
It can be turned ON but not OFF with a gate pulse
D
it can be turned ON only during one half - cycle of an alternating voltage wave
4
GATE EE 2005
MCQ (Single Correct Answer)
+1
-0.3
The conduction loss versus device current characteristic of a power $$MOSFET$$ is best approximated by
A
a parabola
B
a straight line
C
a rectangular hyperbola
D
an exponentially decaying function
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GATE EE Subjects
Electric Circuits
Network Elements Network Theorems Three Phase Circuits Transient Response Sinusoidal Steady State Analysis Graph Theory Two Port Networks
Electromagnetic Fields
Time Varying Fields Electrostatics Magnetostatics
Signals and Systems
Linear Time Invariant Systems Continuous and Discrete Time Signals Continuous Time Signal Fourier Transform Continuous Time Periodic Signal Fourier Series Discrete Time Signal Z Transformation Miscellaneous Continuous Time Signal Laplace Transform Sampling Theorem
Electrical Machines
Induction Machines D.C Machines Synchronous Machines Transformers
Engineering Mathematics
Linear Algebra Differential Equations Calculus Probability and Statistics Numerical Methods Vector Calculus Transform Theory Complex Variable
General Aptitude
Verbal Ability Logical Reasoning Numerical Ability
Power System Analysis
Parameters and Performance of Transmission Lines Power Generation Cost Power System Stability Symmetrical Components and Symmetrical and Unsymmetrical Faults Circuit Breaker Switch Gear and Protection Per Unit System Load Flow Studies High Voltage Dc Transmission Generating Power Station
Electrical and Electronics Measurement
Error Analysis and Measurement Basic of Indicating Instruments Potentiometer and Instrument Transformers Measurement of Resistance and A.C Bridges Measurement of Energy and Power Digital Voltmeters Questions Cathode Ray Oscilloscope
Analog Electronics
Diode Circuits and Applications Bjt and Mosfet Biasing Small Signal Modeling Feedback Amplifiers and Oscillator Circuits Operational Amplifier Frequency Response 555 Timer
Control Systems
Block Diagram and Signal Flow Graph Polar Nyquist and Bode Plot State Variable Analysis Basics of Control System Routh Hurwitz Stability Time Response Analysis Root Locus Techniques Controller and Compensator
Power Electronics
Choppers and Commutation Techniques Ac Voltage Controllers Single and Three Phase Rectifier Power Semiconductor Devices Inverters
Digital Electronics
Boolean Algebra Logic Gates Combinational Circuits Minimization Logic Families and Memories Sequential Circuits Analog to Digital and Digital to Analog Converter Microprocessor
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