Practice Test: Electronics Engineering (ECE)- 10 - Electronics and Communication Engineering (ECE) MCQ
30 Questions MCQ Test GATE ECE (Electronics) Mock Test Series 2025 - Practice Test: Electronics Engineering (ECE)- 10
converges to
The values of λand μ for which the system of equations x + y + z = 9, 2x + 3y + z = 16 and x + 2y + λz = μ have a unique solution are
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The directional derivative of the function f (x) = 2X2 - y2 + 3z2at A(2, 1 - 2) in the direction of 
The sum of the squares of deviation of 10 observations from their mean 50 is 250,then coefficient of variation is
The state equation of the circuit shown in figure is
The dual of the network shown below will be
An unregulated power supply of 25 V is connected to zerer diodes and p - n diodes (cut in voltage 0.7V) as shown in figure, then the values of x and y, 7 are?
The load lines were drawn for the circuit collector Resistance Re = x, and y. From the graph we can conclude that
A silicon diode has saturation current of 6 nA, at 25°C. The saturation current at 100°C is
The CMRR of the differential Amplifier shown Here is
The OP-Amp circuit shown acts as
The base of the number system, in which the operation
is correct?
The minimized Boolean expression of 'F is
A mod 16 counter with Asynchronous, Active low clear input is arranged as shown in figure. It works like a
The discrete fourier series coefficients of 
The z transform of nan-1 u[n] given by
if y(t) = x(t) * h(t), then x(t -t1) *h (t- t2) is
A control system is represented by signal flow graph as shown, C(s) is the output, then 
Range of 'k' for which the feed back system is stable, s(s2 + s + 1) (s + 4) + k = 0
Band width of an FM system is 180 KHz, when audio frequency 15 KHz is FM modulated, The frequency deviation is _______ KHz
Propagation delay for a 1 km optical fibre cable witha core index of refraction as 1.5 is
A narrow band signal occupying a frequency range of nfo to (n + 1) f0 is to be sampled. The maximum sampling rate is
A transmission line is distortion less if
Distilled water at 25°c is characterized by σ = 1.7 x 10-4 mho/m, and s = 78ε0. at freauencv of 3GHz. Its loss tangent tan
The depth of penetration of electromagnetic wave in a medium having conductivity σ at a frequency of 1MHz is 25 cm. The depth of penetration at a frequency of 4MHz will be_____ cm
There are three bags each containing five white balls and two black balls constituting group A and two bags each containing one white ball and four black balls constituting group B. A bag is randomly selected and a ball is drawn from it It was found to be a black ball. What is the probability that the b.alf is drawn from a bag in group A?
Find a real root of the equation x3 + 2x - 1 = 0.
The value of the Fourier cosine expansion of the function f(x) = x in the interval 
The voltage V across the Resistor ‘R’ in the circuit is
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25 docs|263 tests
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25 docs|263 tests
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