Electrical Engineering
GATE EE Electrical and Electronic Measurements PYQs
Build your understanding with focused practice from past exam papers.
How to practice Electrical and Electronic Measurements
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–10 of 21. Imported answers require independent review unless marked reviewed.
Question 57
Open questionEENAT2 marksNeeds review
The resistance values of the Wheatstone bridge shown are: P = 200 Ω, Q = 500 Ω, R = 300 Ω. The battery voltage E = 50 V. The battery has an internal resistance of 1 Ω and the Galvanometer (G) has a resistance of 50 Ω.
The value of the resistance S for balanced condition is ______ Ω (Answer in integer)
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 28
Open questionEEMSQ1 markNeeds review
Instrument(s) required to synchronize an alternator to the grid is/are
Your answerSelect all correct options. You can choose more than one.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 31
Open questionEENAT1 markNeeds review
The maximum percentage error in the equivalent resistance of two parallel-connected resistors of 100
and 900
with each having a maximum 5% error is ______ % (round off to nearest integer value).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 58
Open questionEENAT2 marksNeeds review
In an experiment to measure the active power drawn by a single-phase RL Load connected to an AC source through a 2
resistor, three voltmeters are connected as shown in the figure below. The voltmeter readings are as follows:
,
,
. Assuming perfect resistors and ideal voltmeters, the Load-active power measured in this experiment, in W, is _______ (round off to one decimal place). 
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 59
Open questionEENAT2 marksNeeds review
In the Wheatstone bridge shown below, the sensitivity of the bridge in terms of change in balancing voltage
for unit change in the resistance
, in mV/Ω, is ______________ (round off to two decimal places). 
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 23
Open questionEEMCQ1 markNeeds review
The table lists two instrument transformers and their features:
Instrument Transformers | Features |
|---|---|
| P) Primary is connected in parallel to the grid |
X) Current Transformer (CT) | Q) Open circuited secondary is not desirable |
Y) Potential Transformer (PT) | R) Primary current is the line current |
| S) Secondary burden affects the primary current |
The correct matching of the two columns is
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 39
Open questionEEMCQ2 marksNeeds review
A 3-phase, star-connected, balanced load is supplied from a 3-phase, 400 V (rms), balanced voltage source with phase sequence R-Y-B, as shown in the figure. If the wattmeter reading is −400 W and the line current is
A (rms), then the power factor of the load per phase is
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 18
Open questionEEMCQ1 markNeeds review
A balanced Wheatstone bridge
has the following arm resistances:
is an unknown resistance;
. The value of
and its accuracy isYour answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 12
Open questionEEMCQ1 markNeeds review
Inductance is measured by
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 48
Open questionEENAT2 marksNeeds review
The waveform shown in solid line is obtained by clipping a full-wave rectified sinusoid (shown dashed). The ratio of the RMS value of the full-wave rectified waveform to the RMS value of the clipped waveform is _____. (Round off to 2 decimal places.)
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer