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Q1. | A lag compensator provides attenuation in |

A. | very low frequency range [Wrong Answer] |

B. | low frequency range [Wrong Answer] |

C. | high frequency range [Correct Answer] |

D. | none of the above [Wrong Answer] |

View Answer
Explanation:-
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**Also Read Similar Questions Below :**

⇒ Consider the following rectifier circuits :

- half-wave rectifier without filter
- full-wave rectifier without filter
- full-wave rectifier with series inductance filter
- full-wave rectifier with capacitance filter.

1, 2, 3, 4

3, 4, 1, 2

1, 4, 3, 2

3, 2, 1, 4

⇒ In which of the following frequency bands are the standard AM radio broadcast stations?

MF

HF

VHF

UHF

⇒ The concentration of minority carriers in an extrinsic semiconductor under equilibrium is

directly proportional to the doping concentration

inversely proportional to doping concentration

directly proportional to intrinsic concentration

inversely proportional to the intrinsic concentration

⇒ Consider a Binary Symmetric Channel (BSC) with probability of error being

*p*. To transmit a bit, say 1, we transmit a sequence of three 1 s. The receiver will interpret the received sequence to represent 1 if at least two bits are 1. The probability that the transmitted bit will be received in error is

*p*

^{3}+ 3

*p*

^{2}(1 -

*p*)

*p*

^{3}

(1 -

*p*)

^{3}

*p*

^{3}+

*p*

^{2}(1 -

*p*)

⇒ Two RLC series circuit has same damping ratio. Circuit 1 has higher natural frequency as compared to circuit 2. Then

transients in circuit 2 will decay faster

transients in circuit 1 will decay faster

transients in both circuits will decay at the same rate

transients in any one may decay faster than in the other

⇒ The number of valence electrons in acceptor impurity are

5

4

3

1

⇒ If a two-port network is reciprocal as well as symmetrical, which one of the following relationships is correct?

Z

_{12}= Z

_{21}and Z

_{11}= Z

_{22}

Y

_{12}- Y

_{21}and Y

_{11}- Y

_{22}

AD - BC = 1 and A = D

all of the above

⇒ In

*p*-

*n*-

*p*transistor the current I

_{E}has two components viz. I

_{EP}due to injection of holes from

*p*-region to

*n*-region and I

_{E}due to injection of electrons from

*n*-region to

*p*-region. Then

I

_{Ep}and I

_{En}are almost equal

I

_{Ep}>> I

_{En}

I

_{En}>> I

_{Ep}

either (a) or (c)

⇒ Radar principle is used in

detection of aircraft

burglar alarms

garage door openers

all of the above

⇒ A lossless 50 Ω transmission line is terminated 30 +

*j*25 Ω, then voltage reflection coefficient and current reflection coefficient are

062 ∠82.88, - 0.62 ∠82.88

10.36 ∠11.296, - 10.36 ∠111.296

0.23 ∠49.1, - 0.23 ∠ + 49.1

- 10.36 ∠111.296, 10.36 ∠111.296

⇒ System bus is the communication channel between microprocessor and peripherals.

TRUE

FALSE

⇒ The induced magnetic dipole moment has a direction opposite to the applied magnetic field.

TRUE

FALSE

⇒ When a material is in superconducting state and a magnetic field is applied

the superconducting property is not affected

the superconducting property may be affected and resistivity may increase from zero to a low value

the superconducting property may be destroyed

the material may become an insulator

⇒ For the logic circuit of the given figure the simplified Boolean expressio

A + BC

A + BC

A + B C

A + BC

⇒ CATV stands for

Common Antenna Television

Community Antenna Television

Cable Antenna Television

Channel Antenna Television

⇒ A step up chopper can give an output voltage

higher than input voltage

lower than input voltage

both higher and lower input voltage

all of the above

⇒ In the circuit of figure, the value of

*r*

_{e}is (neglecting

*v*

_{be100 Ω75 Ω50 Ω25 Ω}

⇒ A monostable multivibrator has

no stable state

one stable state

two stable state

none of the above

⇒ The given figure shows a K-map for a Boolean function. The number of essential prime implicant

4

5

6

8

⇒ In the given figure power meters at A and B indicate 1 mW and 110 μW respectively. VSWR of lin

1.5

2

2.5

3

⇒ A better SNR can be obtained in a PCM by

increasing sampling rate above Nyquist rate

decreasing the code bits

reducing channel bandwidth

increasing Quantization levels

⇒ The resistance of a photoconductor

increases with increase in light intensity

decreases with increase in light intensity

may increase or decrease with increase in light intensity

remains constant

⇒ To find the current in a 20 Ω resistance connected in a circuit, Norton's theorem is used. I

_{N}= 7.5 A. The current though 20 Ω resistance.

is 7.5 A

is less than 7.5 A

may be 7.5 A or less

may be 7.5 A or more or less

⇒ In a series LCR circuit the maximum inductor voltage is twice the maximum capacitor voltage however current lags by 30° and drop across the inductance is

*v*

*= 100 sin 377*

_{L}*t*V. Assuming the resistance being 20 Ω, Find the values of the capacitance and inductance.

235 μF, 61.18 μH

230 μF, 61.18 μH

61.18 μF, 230 μH

None of the above

⇒ Which of the following describe the correct properties of an emitter follower circuit?

- It is a voltage series feedback circuit.
- It is a current series feedback circuit.
- Its voltage gain in less than unity.
- Its output impedance is very low.

1, 3 and 4

2, 3 and 4

2 and 3 only

2 and 4 only

⇒ A high level language is less efficient than machine language.

TRUE

FALSE

⇒ For the circuit shown in the figure, the time constant RC = 1 ms. The input voltage is V

_{1}(

*t*) = 2 sin 10

^{3}

*t*. The output voltage V

_{0}(

*t*) is equa

sin (10

^{3}

*t*- 45°)

sin (10

^{3}

*t*+ 45°)

sin (10

^{3}

*t*- 53°)

sin (10

^{3}

*t*+ 53°)

⇒ Binary multiplication can be done by repeated addition.

TRUE

FALSE

⇒ The voltage at which Avalanche occurs is known as

cut in voltage

barrier voltage

breakdown voltage

depletion voltage

⇒ (11)

_{2}+ (11)

_{3}= (11)

_{?}

4

5

6

none