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Questions
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1
GATE EE 1997
MCQ (Single Correct Answer)
+1
-0.3
A potentiometer is basically
A
Deflection type instrument
B
Null type instrument
C
Deflection as well as null
D
A digital instrument
2
GATE EE 1997
MCQ (Single Correct Answer)
+1
-0.3
A transfer instrument employed in the standardization of a polar type $$a.c$$ potentiometer is ______
A
an electro static instrument
B
a thermal instrument
C
a dynamo meter instrument
D
a moving coil instrument
3
GATE EE 1997
MCQ (Single Correct Answer)
+1
-0.3
The primary current in a current transformer is dictated by
A
the secondary burden
B
The core of the transformer
C
the load current
D
none of the above
4
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
In $$d.c.$$ potentiometer measurements, a second reading is often taken after reversing the polarities of the $$s.c.$$ supply and the unknown voltage, and the average of the two readings is taken. This is, with a view to eliminate the effects of
A
Ripples in the $$d.c.$$ supply
B
Stray magnetic fields
C
Stray thermal emf's
D
Erroneous standardization
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Electromagnetic Fields
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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
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Power Electronics
Choppers and Commutation Techniques Ac Voltage Controllers Single and Three Phase Rectifier Power Semiconductor Devices Inverters
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
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
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
Digital Electronics
Sequential Circuits Microprocessor Boolean Algebra Analog to Digital and Digital to Analog Converter Combinational Circuits Minimization Logic Families and Memories Logic Gates
Electrical Machines
Induction Machines D.C Machines Synchronous Machines Transformers
Electric Circuits
Three Phase Circuits Transient Response Graph Theory Two Port Networks Sinusoidal Steady State Analysis Network Elements Network Theorems
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
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