Electronics and Communication Engineering (ECE)
Sanjay Prajapati asked • 1 hour agoNon-minimum phase transfer function is defined as the transfer function- a)which has zeros only in the left-half s-plane
- b)which has poles in the right-half s-plane
- c)which has zeros in the right-half s-plane
- d)which has poles in the left-half s-plane
Correct answer is option 'C'. Can you explain this answer?
Non-minimum phase transfer function is defined as the transfer function
a)
which has zeros only in the left-half s-plane
b)
which has poles in the right-half s-plane
c)
which has zeros in the right-half s-plane
d)
which has poles in the left-half s-plane
Anusri Kothuri As asked • 7 hours agoIn circuit given if both Transistors have same VT what is the approximate value of highest possible output voltage vout if vh, can range from 0 to VDD, it is assumed that 0 < vT < VDD
- a)VDD
- b)vT
- c)VDD - vT
- d)0
Correct answer is option 'C'. Can you explain this answer?
In circuit given if both Transistors have same VT what is the approximate value of highest possible output voltage vout if vh, can range from 0 to VDD, it is assumed that 0 < vT < VDD
a)
VDD
b)
vT
c)
VDD - vT
d)
0
Pooja Bisht asked • 12 hours agoThe antenna current of an AM transmitter is 8 A if only the carrier is sent, but it increases to 8.93 A if the carrier is modulated by a single sinusoidal wave. What is the antenna current when the percent of modulation is 80%?- a)8.6 A
- b)9.2 A
- c)6.6 A
- d)7.0 A
Correct answer is option 'A'. Can you explain this answer?
The antenna current of an AM transmitter is 8 A if only the carrier is sent, but it increases to 8.93 A if the carrier is modulated by a single sinusoidal wave. What is the antenna current when the percent of modulation is 80%?
a)
8.6 A
b)
9.2 A
c)
6.6 A
d)
7.0 A
is applied across a 2H inductor having zero initial current What is the current in the inductor at t = ∞?
Rajlaxmi Prajapati asked • 13 hours agoA number P represented in signed binary 2’s complement form is 1001101. Another number Q1 represented in signed binary 2’s complement form is 11010111. If Q is subtracted from P, the result expressed in signed binary 2’s complement form- a)10111
- b)10011
- c)10110
- d)10010
Correct answer is option 'C'. Can you explain this answer?
A number P represented in signed binary 2’s complement form is 1001101. Another number Q1 represented in signed binary 2’s complement form is 11010111. If Q is subtracted from P, the result expressed in signed binary 2’s complement form
a)
10111
b)
10011
c)
10110
d)
10010
Pubali Chowdhury asked • 18 hours agoRead the following paragraph and choose the correct statement.
Climate change has reduced human security and threatened human well being. An ignored reality
of human progress is that human security largely depends upon environmental security. But on the
contrary, human progress seems contradictory to environment security. To keep up both at the
required level is a challenge to be addressed by one and all. One of the ways to curb the climate
change may be suitable scientific innovations, while the other may be the Gandhian perspective on
small scale progress with focus on sustainability.- a)Human progress and security are positively associated with environmental security
- b)Human progress is contradictory to environmental security.
- c)Human security is contradictory to environmental security.
- d)Human progress depends upon environmental security
Correct answer is option 'D'. Can you explain this answer?
Read the following paragraph and choose the correct statement.
Climate change has reduced human security and threatened human well being. An ignored reality
of human progress is that human security largely depends upon environmental security. But on the
contrary, human progress seems contradictory to environment security. To keep up both at the
required level is a challenge to be addressed by one and all. One of the ways to curb the climate
change may be suitable scientific innovations, while the other may be the Gandhian perspective on
small scale progress with focus on sustainability.
Climate change has reduced human security and threatened human well being. An ignored reality
of human progress is that human security largely depends upon environmental security. But on the
contrary, human progress seems contradictory to environment security. To keep up both at the
required level is a challenge to be addressed by one and all. One of the ways to curb the climate
change may be suitable scientific innovations, while the other may be the Gandhian perspective on
small scale progress with focus on sustainability.
a)
Human progress and security are positively associated with environmental security
b)
Human progress is contradictory to environmental security.
c)
Human security is contradictory to environmental security.
d)
Human progress depends upon environmental security
Naveen Tamatam asked • 21 hours agoThe following statements are related to a tunnel diode1. Fermi level in n-side lies inside valence band2. Excellent conduction is possible in reverse bias3. In reverse bias negative resistance is exhibited4. VP > VV5. It can act as oscillator6. The magnitude of lP is decided by impurity concentration and Junction area7. Ge tunnel diode is used for commercial applicationsWhich of the above statements are false?... more
The following statements are related to a tunnel diode
1. Fermi level in n-side lies inside valence band
2. Excellent conduction is possible in reverse bias
3. In reverse bias negative resistance is exhibited
4. VP > VV
5. It can act as oscillator
6. The magnitude of lP is decided by impurity concentration and Junction area
7. Ge tunnel diode is used for commercial applications
Which of the above statements are false?
Suchithra Venkatesan asked • yesterday“If you are looking for a history of India, or for an account of the rise and fall of the British Raj, or for the reason of the cleaving of the subcontinent into two mutually antagonistic parts and the effects this mutilation will have in the respective section, and ultimately on Asia, you will not find it in these pages; for though I have spent a lifetime in the country. I lived too near the seat of events, and was too intimately associated with the actors, to get the perspective needed for the impartial recording of these matters”.Here, the word ‘antagonistic’ is closest in meaning to- a)impartial
- b)argumentative
- c)separated
- d)hostile
Correct answer is option 'D'. Can you explain this answer?
“If you are looking for a history of India, or for an account of the rise and fall of the British Raj, or for the reason of the cleaving of the subcontinent into two mutually antagonistic parts and the effects this mutilation will have in the respective section, and ultimately on Asia, you will not find it in these pages; for though I have spent a lifetime in the country. I lived too near the seat of events, and was too intimately associated with the actors, to get the perspective needed for the impartial recording of these matters”.
Here, the word ‘antagonistic’ is closest in meaning to
a)
impartial
b)
argumentative
c)
separated
d)
hostile
Bipasha Mukherjee asked • yesterdayConsider an NMOS transistor having kn= 2 mA/V2. Let the transistor be biased at VOV = 1V. For operation in saturation, what dc bias current ID results? If a +0.1-V signal is superimposed on VGS, find the corresponding increment in collector current by evaluating the total collector current ID and subtracting the dc bias current ID.- a) ID = 1mA and Increment = 0.21 mA
- b) ID = 1mA and Increment = 0.42 mA
- c)ID = 2mA and Increment = 0.21 mA
- d)ID = 2mA and Increment = 0.42 mA
Correct answer is option 'A'. Can you explain this answer?
Consider an NMOS transistor having kn= 2 mA/V2. Let the transistor be biased at VOV = 1V. For operation in saturation, what dc bias current ID results? If a +0.1-V signal is superimposed on VGS, find the corresponding increment in collector current by evaluating the total collector current ID and subtracting the dc bias current ID.
a)
ID = 1mA and Increment = 0.21 mA
b)
ID = 1mA and Increment = 0.42 mA
c)
ID = 2mA and Increment = 0.21 mA
d)
ID = 2mA and Increment = 0.42 mA
Spiritiya Fdo asked • yesterdayA silicon pn junction with doping profile of Na =1016 cm-3 and Nd =10 15 cm-3 has a cross sectional area of 10-2 cm2. The length of the p - region is 2 mm and length of the n - region is 1 mm. The approximately series resistance of the diode is
- a) 62Ω
- b) 43Ω
- c) 72Ω
- d) 81Ω
Correct answer is option 'C'. Can you explain this answer?
A silicon pn junction with doping profile of Na =1016 cm-3 and Nd =10 15 cm-3 has a cross sectional area of 10-2 cm2. The length of the p - region is 2 mm and length of the n - region is 1 mm. The approximately series resistance of the diode is
a)
62Ωb)
43Ωc)
72Ωd)
81Ω 
Siddharth T asked • yesterdayWith 10 V dc connected at port A in the linear nonreciprocal two-port network
shown below, the following were observed :
Q.For the same network, with 6 V dc connected at port A, 1Ω connected at port B
draws 7/3 A. If 8 V dc is connected to port A, the open circuit voltage at port B is- a)6 V
- b)7V
- c)8 V
- d)9V
Correct answer is option 'B'. Can you explain this answer?
With 10 V dc connected at port A in the linear nonreciprocal two-port network
shown below, the following were observed :
shown below, the following were observed :
Q.
For the same network, with 6 V dc connected at port A, 1Ω connected at port B
draws 7/3 A. If 8 V dc is connected to port A, the open circuit voltage at port B is
draws 7/3 A. If 8 V dc is connected to port A, the open circuit voltage at port B is
a)
6 V
b)
7V
c)
8 V
d)
9V
Padmaja Pothala asked • yesterdayThe pole-zero diagram of a causal and stable discrete-time system is shown in the figure. The
zero at the origin has multiplicity 4. The impulse response of the system is h[n]. If h[0] = 1,
we can conclude
- a)h[n] is real for all n
- b)h[n] is purely imaginary for all n
- c)h[n] is real for only even n
- d)h[n] is purely imaginary for only odd n
Correct answer is option 'C'. Can you explain this answer?
The pole-zero diagram of a causal and stable discrete-time system is shown in the figure. The
zero at the origin has multiplicity 4. The impulse response of the system is h[n]. If h[0] = 1,
we can conclude
zero at the origin has multiplicity 4. The impulse response of the system is h[n]. If h[0] = 1,
we can conclude
a)
h[n] is real for all n
b)
h[n] is purely imaginary for all n
c)
h[n] is real for only even n
d)
h[n] is purely imaginary for only odd n
Anumala Krishna Vamsi asked • yesterdayA binary symmetric channel (BSC) has a transition probability of 1/8. If the
binary symbol X is such that P(X = 0) = 9/10, then the probability of error for
an optimum receiver will be Correct answer will be uploaded soon - a)a
- b)b
- c)c
- d)d
Correct answer is option 'A'. Can you explain this answer?
A binary symmetric channel (BSC) has a transition probability of 1/8. If the
binary symbol X is such that P(X = 0) = 9/10, then the probability of error for
an optimum receiver will be
binary symbol X is such that P(X = 0) = 9/10, then the probability of error for
an optimum receiver will be
Correct answer will be uploaded soon
a)
a
b)
b
c)
c
d)
d
Shahbaaz Ahmed asked • yesterdayNumerical Anser type questionQ.For a BJT, CE-mode, Base to emitter capacitance (Cπ) is 10 times the collector to base capacitance (Cµ). If transistor is biased at quiescent collector current ICQ = 1 mA, and its short circuit unity gain frequency is 0.909 M rad/sec, then the value of Cπ is _______ nF.
Correct answer is '44'. Can you explain this answer?
Numerical Anser type question
Q.
For a BJT, CE-mode, Base to emitter capacitance (Cπ) is 10 times the collector to base capacitance (Cµ). If transistor is biased at quiescent collector current ICQ = 1 mA, and its short circuit unity gain frequency is 0.909 M rad/sec, then the value of Cπ is _______ nF.
Kesava Surendra asked • yesterdayA lag compensation network
(a) increases the gain of the original network without affecting stability.
(b) reduces the steady state error.
(c) reduces the speed of response
(d) permits the increase of gain of phase margin is acceptable.
In the above statements, which are correct- a)a and b
- b)b and c
- c)b, c, and d
- d)all
Correct answer is option 'D'. Can you explain this answer?
A lag compensation network
(a) increases the gain of the original network without affecting stability.
(b) reduces the steady state error.
(c) reduces the speed of response
(d) permits the increase of gain of phase margin is acceptable.
In the above statements, which are correct
(a) increases the gain of the original network without affecting stability.
(b) reduces the steady state error.
(c) reduces the speed of response
(d) permits the increase of gain of phase margin is acceptable.
In the above statements, which are correct
a)
a and b
b)
b and c
c)
b, c, and d
d)
all
represent a
Prem Kumar asked • 2 days agoAssertion (A) : Smith chart is designed for λ/2length only.
Reason (R) : For every λ/2 length, the load impedance appears to be same as Zin.- a)Both A and R are correct and R is the correct explanation of A
- b)Both A and R are correct and R is not the correct explanation of A
- c) A is true and R is false
- d)A is false and R is true
Correct answer is option 'A'. Can you explain this answer?
Assertion (A) : Smith chart is designed for λ/2length only.
Reason (R) : For every λ/2 length, the load impedance appears to be same as Zin.
Reason (R) : For every λ/2 length, the load impedance appears to be same as Zin.
a)
Both A and R are correct and R is the correct explanation of A
b)
Both A and R are correct and R is not the correct explanation of A
c)
A is true and R is false
d)
A is false and R is true
Bipasha Mukherjee asked • 2 days ago(Q.3-Q.5) Consider the amplifier below for the case VDD = 5 V, RD = 24 kΩ, (W/L) = 1 mA/V2, and Vt = 1 V.
If the amplifier is biased to operate with an overdrive voltage VOV of 0.5 V, find the incremental gain at the bias point.- a)-3 V/V
- b)-6 V/V
- c) -9 V/V
- d)-12 V/V
Correct answer is option 'D'. Can you explain this answer?
(Q.3-Q.5) Consider the amplifier below for the case VDD = 5 V, RD = 24 kΩ, (W/L) = 1 mA/V2, and Vt = 1 V.
If the amplifier is biased to operate with an overdrive voltage VOV of 0.5 V, find the incremental gain at the bias point.
If the amplifier is biased to operate with an overdrive voltage VOV of 0.5 V, find the incremental gain at the bias point.
a)
-3 V/V
b)
-6 V/V
c)
-9 V/V
d)
-12 V/V
Telu Ram asked • 2 days ago Match List-I (Combinational Circuits) with List-ll (Applications) and select the correct answer using the codes given below the lists:List-I
A. Decoder
B. Multiplexer
C. Encoder
D. DemultiplexerList-ll
1. Serial to parallel converter
2. Digital to analog converter
3. Parallel to serial converter
4. Analog to digital converter
- a)a
- b)b
- c)c
- d)d
Correct answer is option 'B'. Can you explain this answer?
Match List-I (Combinational Circuits) with List-ll (Applications) and select the correct answer using the codes given below the lists:
List-I
A. Decoder
B. Multiplexer
C. Encoder
D. Demultiplexer
A. Decoder
B. Multiplexer
C. Encoder
D. Demultiplexer
List-ll
1. Serial to parallel converter
2. Digital to analog converter
3. Parallel to serial converter
4. Analog to digital converter
1. Serial to parallel converter
2. Digital to analog converter
3. Parallel to serial converter
4. Analog to digital converter
a)
a
b)
b
c)
c
d)
d
Fetching relevant content for you
Ask a question
Related Courses
|
Follow Us
|