GATE EE

Cathode Ray Oscilloscope

Electrical and Electronics Measurement

(Past Years Questions)

Marks 1

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A stationary closed Lissajous pattern on an oscilloscope has $$3$$ horizontal tangencies and $$2$$ vertical tangencies f...
GATE EE 2017 Set 2
The slope and level detector circuit in a CRO has a delay of 100 ns. The start-stop sweep generator has a response time ...
GATE EE 2017 Set 1
The two signals $$S1$$ and $$S2,$$ shown in figure, are applied to $$Y$$ and $$X$$ deflection plates of an oscilloscope...
GATE EE 2014 Set 3
In an oscilloscope screen, linear sweep is applied at the
GATE EE 2014 Set 1
A dual trace oscilloscope is set to operate in the ALTernate. The control input of the multiplexer used in the y-circuit...
GATE EE 2011
The two inputs of a $$CRO$$ are fed with two stationary periodic signals. In the $$X$$-$$Y$$ mode, the screen shows a fi...
GATE EE 2009
The probes of a non $$-$$ isolated, two-channel oscilloscope are clipped to points $$A, B, $$ and $$C$$ in the circuit o...
GATE EE 2007
The time/div and voltage/div axes of an oscilloscope have been erased. A student connects a 1kHz, 5V p-p square wave cal...
GATE EE 2006
Two in-phase, 50Hz sinusoidal waveform of unit amplitude are fed into channel-1. and channel-2 respectively of an oscill...
GATE EE 2002
A certain oscilloscope with 4 c.m by 4 c.m screen has its own sweep output fed to its input. If the x and y sensitivitie...
GATE EE 1995
A lissajous pattern, as shown in figure below, is observed on the screen of a $$CRO$$ when voltages of frequencies $${f_...
GATE EE 1994
A $$CRO$$ screen has ten divisions on the horizontal scale. If a voltage signal $$5$$ $$sin$$$$\left( {314t + {{45}^ \ci...
GATE EE 1993

Marks 2

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Two Sinusoidal signal $$p\left( {{\omega _1}t} \right) = A\,\sin \omega t,$$ and $$q\left( {{\omega _2}t} \right)$$ are ...
GATE EE 2008
The simultaneous application of signals $$x(t)$$ and $$y(t)$$ to the horizontal and vertical plates, respectively, of an...
GATE EE 2005
A $$CRO$$ probe has an impedance of $$500k\Omega $$ in parallel with a capacitance of $$10pF$$. The probe is used to mea...
GATE EE 2004
List $$-$$ $${\rm I}$$ represents the figures obtained on a $$CRO$$ screen when the voltage signals $$\,{V_X}\,\, = \,\,...
GATE EE 2003
Fig. shows the electrostatic vertical deflection system of $$CRT$$. Given that $${V_A}$$ is the accelerating voltage, th...
GATE EE 1998

Marks 3

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In an oscilloscope the input to the horizontal plates is a $$100Hz$$ voltage signal. The lissajous patterns $$(A), (B)$$...
GATE EE 1996

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