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GATE 2022 Toppers Quiz 11
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Question 1
Consider an AWGN channel with 4kHz bandwidth and the two sided noise PSD 10-12W/Hz. The signal power required at receiver is 0.1mw calculate the channel capacity.
Question 2
The plane wave with 
A lossless medium (εr = 4, μr = 1) encounters free space at z = 0. The reflected electric field 
is
Question 3
For a particular semiconductor material, following parameters observed
μn = 1000 cm2/Vs
μp = 600 cm2/Vs
NC = NV = 1019 cm-3
These parameters are independent of temperature. The measured conductivity of the intrinsic material is σ = 10-6 Ω-1cm-1 at T = 300K
The resistivity at T = 500 K is
μn = 1000 cm2/Vs
μp = 600 cm2/Vs
NC = NV = 1019 cm-3
These parameters are independent of temperature. The measured conductivity of the intrinsic material is σ = 10-6 Ω-1cm-1 at T = 300K
The resistivity at T = 500 K is
Question 4
The output voltage (V0) of ideal transformer with the polarities and dots shows in fig is given by
Question 5
The BJT’s in the Darlington follower of figure have β = 100. If the follower is fed with a source having a 100 kΩ resistance and is loaded with 1 kΩ, the input resistance is
Question 6
Consider the circuit shown in figure, 
= 0.2 mA/V², 
= 0.8 V, the DC operating point(
, 
) is
= 0.2 mA/V², = 0.8 V, the DC operating point(, ) is
Question 7
Consider the signal shown in the figure below
If this signal is applied to an LTI system whose impulse response is h(t) = u(t) – u(t – 1) then value of y(t) at t = 1.5 sec is ______
Question 8
In a circuit below possible value of R (in ohm) for which system is under damped_________
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ESE & GATE ECGeneralDec 23ESE & GATE EC
