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GATE-EC-Section-Test-4
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Question 1
Decimal 43 in Hexadecimal and BCD number system is respectively
Question 2
Which of the following analog modulation scheme requires the minimum transmitted power and minimum channel bandwidth?
Question 3
In a series RLC circuit R = 2k Ω, L = 1 H, and 
. The resonant frequency is
. The resonant frequency is Question 4
A Silicon PN Junction at a temperature of 20 °C has a reverse saturation current of 10 pic-Amperes (pA). the reverse saturation current at 40 °C for the same bias is approximately
Question 5
Which of the following can be impulse response of a causal system?
Question 6
The h parameters of the circuit shown in figure are
Question 7
A double integrator plant, 
is to be compensated to achieve the damping ration ζ = 0.5 and an undamped natural frequency, ω0 = 5 rad/s. Which one of the following compensator Gc(s) will be suitable?
is to be compensated to achieve the damping ration ζ = 0.5 and an undamped natural frequency, ω0 = 5 rad/s. Which one of the following compensator Gc(s) will be suitable? Question 8
Which one of the following does represent the electric field lines for the TE02 mode in the cross-section of a hollow rectangular metallic waveguide?
Question 9
Characteristic impedance of a transmission line is 50 Ω. Input impedance of the open circuited line is ZOC = 100 + j150 Ω. When the transmission line is short circuited the value of the input impedance will be
Question 10
A carrier is phase modulated (PM) with frequency deviation of 10 kHz by a single tone frequency of 1 kHz. If the single tone frequency is increased to 2 kHz, assuming that phase deviation remains unchanged, the bandwidth of the PM signal is
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May 25ESE & GATE EC
