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Telangana State Post Graduate Engineering Common Entrance Test
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Electronics and Communication Engineering
List of top Electronics and Communication Engineering Questions asked in Telangana State Post Graduate Engineering Common Entrance Test
If three equal resistances of \(12\Omega\) are connected in Delta, then each resistance of the equivalent Star is
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electronic Circuits
When two, two-port networks are connected in series, then
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electronic Circuits
Obtain the inverse Laplace transform of \( F(s) = \frac{1}{s^2(s+2)} \)
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Laplace transforms
A transfer function is given by \( H(s) = \frac{2(s+2)(s+4)}{(s+3)(s+5)(s+7)} \). Then the transfer function becomes zero when
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Signals and Systems
For a series RLC circuit which of the following statement is not correct?
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electronic Circuits
The values of B and D of ABCD parameters of two port network respectively are
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electronic Circuits
Driving point impedance of the function \( F(s) = \frac{(s+k_1)(s+k_2)(s+k_3)}{(s+1)(s+2)(s+3)} \) is
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electronic Circuits
The function \( \frac{dq}{dv} \) is called incremental then it is
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electronic Circuits
A coil of resistance \(12 \Omega\) and inductance 18 H is suddenly connected to a dc supply of 30 V. Calculate time constant
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electronic Circuits
Find the value of required resistor across AB of the following circuit to transfer maximum power?
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electronic Circuits
The array factor of an N element linear uniform array is \newline (\(\Psi = \beta d \cos\theta + \alpha\), \(\beta = \frac{2\pi}{\lambda}\), d = spacing between elements and \(\alpha\) = inter element phase shift)
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Antennas and Wave Propagation
In lossless medium for which \( \eta = 60\pi \), \( \mu_r = 1 \) and \( H = -0.1\cos(\omega t - z) \hat{a}_x + 0.5\sin(\omega t - z) \hat{a}_y \text{ A/m} \), calculate \(\omega\).
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electromagnetic Theory and Electronics
Which factor determines the range resolution of a radar?
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
communication systems
A wave travelling in conducting medium, if its amplitude decreases by a factor of _____ it is called penetration depth of the medium.
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electromagnetic Theory and Electronics
If a small single-turn loop antenna has a radiation resistance of 0.04 \(\Omega\), how many turns are needed to produce a radiation resistance of 1 \(\Omega\)?
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Antennas and Wave Propagation
Flat-top sampling leads to
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
communication systems
Which one of the following is not true of a lossless line?
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electromagnetic Theory and Electronics
According to Parseval's theorem the energy spectral density curve is equal to the area under
(The question is phrased a bit oddly. "energy spectral density curve is equal to the area under..." Parseval's theorem relates energy in time domain to energy in frequency domain. The area under the Energy Spectral Density (ESD) curve *is* the total energy.)
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Signals and Systems
A loop is rotating about the y-axis in a magnetic field \( B = B_0 \sin \omega t \ \hat{a}_z \text{ Wb/m}^2 \). The voltage induced in the loop is due to
(Note: \(\hat{a}_z\) means the B field is in the z-direction. The loop rotates about y-axis.)
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electromagnetic Theory and Electronics
Which of the following function does not satisfy the wave equation?
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electromagnetic Theory and Electronics
The Maxwell's equation \( \oint \vec{E} \cdot d\vec{l} \) is equal to
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electromagnetic Theory and Electronics
If in a rectangular waveguide for which \(a=2b\), the cutoff frequency for TE\(_{01}\) mode is 12 GHz, the cutoff frequency for TM\(_{11}\) is
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
Electromagnetic Theory and Electronics
The input to a matched filter is given by \( S(t) = 10 \sin(2\pi \times 10^6 t), 0<t<1 \) second. The peak amplitude of the filter output is
(Note: The duration \(0<t<1\) second is very long for a 1 MHz signal. This implies many cycles. Energy of the signal will be large.)
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
communication systems
As the bandwidth approaches infinity, the channel capacity becomes
(Referring to Shannon-Hartley theorem: \(C = B \log_2(1 + S/N)\))
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
communication systems
In delta modulation (DM) system, the granular noise occurs when the modulating signal
TS PGECET - 2024
TS PGECET
Electronics and Communication Engineering
communication systems
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