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GATE 2022 Boost up Quiz 1.0
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Question 1
Consider the following circuit
Find value of ‘K’ for circuit at resonance is _________
Question 2
In the figure shown, the npn transistor acts as a switch
For the inputVin(t) as shown in the figure, the transistor switches between the cut-off and saturation regions of operation, when T is large. Assume collector-to-emitter voltage saturation VCE(sat)=0.2V and base-to-emitter voltage VBE=0.7V. The minimum value of the common-base current gain (α) of the transistor for the switching should be _____.
For the inputVin(t) as shown in the figure, the transistor switches between the cut-off and saturation regions of operation, when T is large. Assume collector-to-emitter voltage saturation VCE(sat)=0.2V and base-to-emitter voltage VBE=0.7V. The minimum value of the common-base current gain (α) of the transistor for the switching should be _____.
Question 3
Let X and Y be two statistically independent random variables uniformly distributed in the ranges (–1, 1) and (–2, 1) respectively. Let Z = X + Y, then the probability that [Z≤-2] is
Question 4
Consider the state diagram shown in the figure below
The minimum number of flip-flops required to implement this state diagram is………
Question 5
The block diagram of the system is
The number of state variables required to represent this state variables representation form is _____ .
Question 6
An integral I over a counter clock wise circle C is given by 
If C is defined as |z|=3, then the value of I is
If C is defined as |z|=3, then the value of I is Question 7
A MOS structure with p-type semiconductor substrate doped with 
. The oxide thickness is 
and the gate material is made of 
poly silicon.
. The oxide thickness is and the gate material is made of poly silicon.
Then find the Flat band voltage (in volts) of the device if the equivalent oxide charge density is 
electronic charge per cm2.
Question 8
A communication system operates in an AWGN channel and employs BPSK modulation. If 
(Eb signal energy per bit, N0 = noise power spectral density) and given that erf (2) = 0.99532, the average BER is?
(Eb signal energy per bit, N0 = noise power spectral density) and given that erf (2) = 0.99532, the average BER is?
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ESE & GATE ECGeneralDec 10ESE & GATE EC
