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1
GATE EE 2008
MCQ (Single Correct Answer)
+1
-0.3
In the single phase voltage controller circuit shown in the figure, for what range of triggering angle $$\left( \alpha \right)$$, the output voltage $$\left( {{V_0}} \right)$$ is not controllable? GATE EE 2008 Power Electronics - Ac Voltage Controllers Question 2 English
A
$${0^ \circ } < \alpha < {45^ \circ }$$
B
$${45^ \circ } < \alpha < {135^ \circ }$$
C
$${90^ \circ } < \alpha < {180^ \circ }$$
D
$${135^ \circ } < \alpha < {180^ \circ }$$
2
GATE EE 1994
Fill in the Blanks
+1
-0
Thysistor circuits that directly convert poly phase $$ac$$ voltage from one frequency to another frequency are called _______.
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Electric Circuits
Three Phase Circuits Transient Response Graph Theory Two Port Networks Sinusoidal Steady State Analysis Network Elements Network Theorems
Electromagnetic Fields
Time Varying Fields Electrostatics Magnetostatics
Signals and Systems
Continuous and Discrete Time Signals Linear Time Invariant Systems Continuous Time Signal Fourier Transform Discrete Time Signal Z Transformation Continuous Time Signal Laplace Transform Sampling Theorem Continuous Time Periodic Signal Fourier Series Miscellaneous
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
Basic of Indicating Instruments Error Analysis and Measurement Measurement of Resistance and A.C Bridges Measurement of Energy and Power Digital Voltmeters Questions Potentiometer and Instrument Transformers 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
Time Response Analysis Block Diagram and Signal Flow Graph Polar Nyquist and Bode Plot State Variable Analysis Root Locus Techniques Basics of Control System Routh Hurwitz Stability Controller and Compensator
Power Electronics
Choppers and Commutation Techniques Single and Three Phase Rectifier Power Semiconductor Devices Ac Voltage Controllers 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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