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1
GATE EE 2000
MCQ (Single Correct Answer)
+2
-0.6
The two wattmeter method is used to measure active power on a three phase, three wire system. If the phase voltage is unbalanced, then the power reading is
A
affected by both negative sequence and zero sequence voltages
B
affected by negative sequence voltages but not by zero sequence voltages
C
affected by zero sequence voltages but not by negative sequence voltages
D
not affected by negative or zero sequence voltages
2
GATE EE 1999
MCQ (Single Correct Answer)
+2
-0.6
The voltage phasor of a circuit is $$10\angle {15^ \circ }V$$ and the current phasor is $$2\angle - {45^ \circ }A.$$ The active and the reactive powers in the circuit are
A
$$10$$ $$W$$ and $$17.32$$ $$V$$ Ar.
B
$$5$$ $$W$$ and $$8.66$$ $$V$$ Ar.
C
$$20$$ $$W$$ and $$60$$ $$V$$ Ar.
D
$$20\sqrt 2 $$ and $$10\sqrt 2 V$$ Ar.
3
GATE EE 1997
Fill in the Blanks
+2
-0
For the circuit shown in Fig, the wattmeter reading will be .... W and the power dissipted in the load is ......W GATE EE 1997 Electrical and Electronics Measurement - Measurement of Energy and Power Question 2 English
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GATE EE Subjects
Electromagnetic Fields
Time Varying Fields Electrostatics Magnetostatics
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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
Engineering Mathematics
Calculus Vector Calculus Linear Algebra Differential Equations Probability and Statistics Transform Theory Complex Variable Numerical Methods
General Aptitude
Verbal Ability Logical Reasoning Numerical Ability
Power Electronics
Choppers and Commutation Techniques Single and Three Phase Rectifier Power Semiconductor Devices Ac Voltage Controllers Inverters
Power System Analysis
Per Unit System Power Generation Cost Power System Stability Symmetrical Components and Symmetrical and Unsymmetrical Faults Circuit Breaker Switch Gear and Protection Load Flow Studies High Voltage Dc Transmission Generating Power Station Parameters and Performance of Transmission Lines
Analog Electronics
Diode Circuits and Applications Frequency Response Bjt and Mosfet Biasing 555 Timer Feedback Amplifiers and Oscillator Circuits Operational Amplifier Small Signal Modeling
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
Digital Electronics
Boolean Algebra Logic Gates Combinational Circuits Minimization Logic Families and Memories Sequential Circuits Analog to Digital and Digital to Analog Converter Microprocessor
Electrical Machines
Induction Machines D.C Machines Synchronous Machines Transformers
Electric Circuits
Network Elements Network Theorems Three Phase Circuits Transient Response Sinusoidal Steady State Analysis Graph Theory Two Port Networks
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
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