Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by whitelisting our website.

Electronics And Communication Engineering

If it is desired to have low output impedance in an amplifier circuit then we should use

Analog Electronics, Electronics And Communication Engineering /
Question: If it is desired to have low output impedance in an amplifier circuit then we should use
[A].

common collector circuit

[B].

common base circuit

[C].

common emitter circuit

[D].

either (b) or (c)

Answer: Option A

Explanation:

Therefore CC configuration is used for impedance matching.

If it is desired to have low output impedance in an amplifier circuit then we should use Read More »

Analog Electronics, Electronics And Communication Engineering

A seven bit code (even parity) 1111101 may have error. The correct code is

Digital Electronics, Electronics And Communication Engineering /
Question: A seven bit code (even parity) 1111101 may have error. The correct code is
[A].

1111101

[B].

1111111

[C].

0101011

[D].

1100011

Answer: Option B

Explanation:

No answer description available for this question.

A seven bit code (even parity) 1111101 may have error. The correct code is Read More »

Digital Electronics, Electronics And Communication Engineering

A variable resistance R and capacitive reactance XC are connected in series. As R is varied, the locus of Z is

Electronics And Communication Engineering, Networks Analysis And Synthesis /
Question: A variable resistance R and capacitive reactance XC are connected in series. As R is varied, the locus of Z is
[A].

a straight line parallel to Y axis in 4th quadrant

[B].

a straight line parallel to X axis in 4th quadrant

[C].

a straight line parallel to Y axis in second quadrant

[D].

a straight line parallel to Y axis in first quadrant

Answer: Option C

Explanation:

No answer description available for this question.

A variable resistance R and capacitive reactance XC are connected in series. As R is varied, the locus of Z is Read More »

Electronics And Communication Engineering, Networks Analysis And Synthesis

In a series RLC circuit the phase angle θ of impedance Z ∠θ is positive. The circuit will behave as

Electronics And Communication Engineering, Networks Analysis And Synthesis /
Question: In a series RLC circuit the phase angle θ of impedance Z ∠θ is positive. The circuit will behave as
[A].

resistive circuit

[B].

RC circuit

[C].

RL circuit

[D].

either RL or RC circuit

Answer: Option B

Explanation:

In RL circuits phase angle of Z is positive.

In a series RLC circuit the phase angle θ of impedance Z ∠θ is positive. The circuit will behave as Read More »

Electronics And Communication Engineering, Networks Analysis And Synthesis

In figure the switch has been in position 1 for a long time. At t = 0, the switch is moved to position 2. The equation for transient current is

Electronics And Communication Engineering, Networks Analysis And Synthesis /
Question: In figure the switch has been in position 1 for a long time. At t = 0, the switch is moved to position 2. The equation for transient current is
[A].

[B].

[C].

[D].

Answer: Option C

Explanation:

When switch is in position 2, time constant is

In figure the switch has been in position 1 for a long time. At t = 0, the switch is moved to position 2. The equation for transient current is Read More »

Electronics And Communication Engineering, Networks Analysis And Synthesis

Assertion (A): As the length of the resonant antenna is increased, the number of lobes increases and the direction of the major lobes is closer and closer to the direction of the diode.Reason (R): As the length increases, the current distribution along the wire becomes more and more uniform.

Electronics And Communication Engineering, Exam Questions Papers /
Question: Assertion (A): As the length of the resonant antenna is increased, the number of lobes increases and the direction of the major lobes is closer and closer to the direction of the diode.Reason (R): As the length increases, the current distribution along the wire becomes more and more uniform.
[A].

Both A and R are individually true and R is the correct explanation of A

[B].

Both A and R are individually true but R is not the correct explanation of A

[C].

A is true but R is false

[D].

A is false but R is true

Answer: Option C

Explanation:

No answer description available for this question.

Assertion (A): As the length of the resonant antenna is increased, the number of lobes increases and the direction of the major lobes is closer and closer to the direction of the diode.Reason (R): As the length increases, the current distribution along the wire becomes more and more uniform. Read More »

Electronics And Communication Engineering, Exam Questions Papers

Examine the following truth table. The product of sum from this truth table is

Digital Electronics, Electronics And Communication Engineering /
Question: Examine the following truth table. The product of sum from this truth table is
[A].

(X + Y) (X + Y)

[B].

(X + Y) (X + Y)

[C].

(X + Y) (X + Y)

[D].

(X + Y) (X + Y)

Answer: Option D

Explanation:

No answer description available for this question.

Examine the following truth table. The product of sum from this truth table is Read More »

Digital Electronics, Electronics And Communication Engineering