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Q1. | Figure shows the variation of Z(ω) for a positive real function. The functio |

A. | RC impedance [Correct Answer] |

B. | RL impedance [Wrong Answer] |

C. | RLC impedance [Wrong Answer] |

D. | Reactance function [Wrong Answer] |

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Explanation:-
Answer : ADiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒

Match the following:

List I (Octal) | List II (Hexadecimal) | ||
---|---|---|---|

A. | 66 | 1. | 3 F |

B. | 77 | 2. | 36 |

C. | 55 | 3. | 27 |

D. | 47 | 4. | 3D |

A-1, B-3, C-2, D-4

A-2, B-1, C-4, D-3

A-3, B-1, C-2, D-4

A-4, B-1, C-2, D-3

⇒ D-layer extends approximately from

50 to 90 km

20 to 50 km

90 to 110 km

up to 50 km

⇒ Circuit shown in the figur

astable multivibrator

monostable multivibrator

VCO

ramp Generator

⇒ Noise limiter is provided on AM receivers to

reduce interfering noise due to ignition system

reduce noise due to electrical storms

reduce interference due to electrical machinery

all of the above

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | Zener diode | 1. | used in seven segment display |

B. | Tunnel diode | 2. | used in voltage regulator circuits |

C. | LED | 3. | used is solar energy utilization |

D. | Photovoltaic cell | 4. | used in digital circuits |

A-1, B-3, C-2, D-4

A-2, B-3, C-1, D-4

A-2, B-4, C-1, D-3

A-3, B-2, C-4, D-1

⇒ The decimal equivalent of ABC

_{16}is

348

2583

2748

33

⇒ Parallel adder is

sequential circuit

combinational circuit

either sequential or combinational circuit

none of the above

⇒ A 3 phase semiconverter when supplying a certain load has a rectification efficiency of 0.6 and transformer utilisation factor of 0.35. When a 3 phase full converter is supplying the same load

rectification efficiency will be more than 0.6 and TUF will be more than 0.35

rectification efficiency will be more than 0.6 but TUF will be less than 0.35

rectification efficiency will be less than 0.6 and TUF will be less than 0.35

rectification efficiency will be less than 0.6 but TUF will be more than 0.35

⇒ A square in which each (

*i*,

*j*)

^{th}element of matrix is equal to the negative of the conjugate complex of (

*j*,

*i*)

^{th}element, is called

Hermitian matrix

Skew symmetric matrix

Conjugate anti-symmetric matrix

Skew-Hermitian matrix

⇒ Which of the statement is correct?

*h*and

*g*matrices are inverse of each other

*z*and

*y*matrices are inverse of each other

for reciprocal networks AD - BC = 1

ABCD parameters are used in transistor circuit

⇒ Line of sight transmission is used in

radio frequencies below 1 MHz

VHF only

audio signals only

VHF and UHF

⇒ Natural commutation can be used in :

DC circuits only

AC circuits only

both AC and DC circuits

none of the above

⇒ A thermistor is used for

over voltage protection

temperature alarm circuit

automatic light control

none of the above

⇒ In a 100% amplitude modulated signal, the power in the upper sideband when carrier power is to be 100 W and modulation system SSBSC, is

100 W

66 W

50 W

25 W

⇒

Match the following:

List I (Location of characteristics roots) | List II (System characteristic) | ||
---|---|---|---|

A. | (- 1 + j), (- 1 - j) | 1. | Marginally stable |

B. | (- 2 + j), (- 2 - j), (2, j) (- 2, j) | 2. | Unstable |

C. | - j, j - 1, 1 | 3. | Stable |

A-1, B-2, C-3

A-2, B-3, C-1

A-3, B-1, C-2

A-1, B-3, C-2

⇒

**Assertion (A):** The phenomenon of differential mobility is called transferred electron effect.

**Reason (R):** GaAs exhibits transferred electron effect.

Both A and R are correct and R is correct explanation of A

Both A and R are correct but R is not correct explanation of A

A is correct but R is wrong

A is wrong but R is correct

⇒ Consider isotropic radiator radiating a power of 1 watt. At a distance of 1 metre, the power per unit area with equal

1 watt/m

^{2}

4p watt/m

^{2}

1/4p watt/m

^{2}

2p watt/m

^{2}

⇒ As per BIS, the number of accuracy classes of instrument is

5

6

7

8

⇒ In a synchro error detector, the output voltage is proportional to [ω(

*t*)]

^{n}, where ω(

*t*) is the rotor velocity and

*n*equals :

-2

-1

1

2

⇒ Negative feedback lowers the cut off frequency and increase the upper cut off frequency of amplifier.

TRUE

FALSE

⇒ For the circuit shown in the figure, the capacitor C is initially uncharged. At

*t*= 0, the switch S is closed. The voltage V

_{c}across the capacitor at

*t*= 1 millisecond is (In the figure shown above, the op-amp is supplied with ± 15 V and the ground has been shown by the sym

0 V

6.3 V

9.45 volts

10 volts

⇒ In amplitude modulation

the amplitude of carrier varies in accordance with the amplitude of the modulating signal

the modulating frequency lies in the audio range

the amplitude of the carrier remains constant

the amplitude of the carrier varies in accordance with the frequency of the modulating signal

⇒ A function Z(

*s*) has zero at infinity if

the degree of numerator and denominator are equal

the numerator of Z(

*s*) is one degree higher than denominator

the denominator of Z(

*s*) is one degree higher than numerator

the degree of numerator and denominator are either equal or differ by one

⇒ If the load current is high, the pressure coil of wattmeter should be connected directly across the load.

TRUE

FALSE

⇒ Consider the following features of an instrument

- suitable for both ac and dc
- free from hysteresis and eddy current errors
- No waveform and frequency errors
- it is essentially a voltmeter

moving iron

moving coil

electrostatic

dynamometer

⇒ Which of the following are true for relative dielectric constant?

- It is dimensionless.
- It is equal to 1 for vacuum.
- It is equal to 1 for all substances.

1 and 2 only

2 and 3 only

1 and 3 only

1, 2 and 3

⇒ In a resistance loaded amplifier, the gain decreases at high frequencies because

decreasing reactance of the stray C

_{T}

increasing reactance of the stray C

_{T}

increasing reactance of C

_{T}

decreasing reactance of C

_{T}

⇒ The number of protons in germanium atom is

4

16

28

32

⇒ The box on the external left of the title bar of menu is called control menu box.

TRUE

FALSE

⇒ In a TV studios, flying spot scanner is a device for

mixing video and audio signals

telecasting feature films

live telecast of outdoor programs

telecast of indoor music programs