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Q1. | The entries in the first column of Routh array of a fourth order are 5, 2, - 0.1, 2, 1. The number of poles in the right half plane are |

A. | 1 [Wrong Answer] |

B. | 2 [Correct Answer] |

C. | 3 [Wrong Answer] |

D. | 4 [Wrong Answer] |

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

⇒

Match the following:

List I (Diode Rectifier) | List II (Efficiency is R_{f}/R_{L} = 0.25) | ||
---|---|---|---|

A. | Half wave | 1. | 0.54 |

B. | Bridge Rectifier | 2. | 0.65 |

C. | Full wave using tapped centre transformer | 3. | 0.325 |

A-1, B-2, C-3

A-2, B-1, C-3

A-3, B-2, C-1

A-3, B-1, C-2

⇒ Which one of the following is true?

Alternating voltage and current contain odd and even harmonics

The inductance in a circuit reduces the effect of harmonics and makes current wave more sinusoidal than voltage wave

Alternating voltage and current waveforms, in general, do not contain odd harmonics

Inductance of a circuit does not alter wave shape at all

⇒ Two sinusoidal waves 1 and 2 have peak values V

_{m1}and V

_{m2}. Wave 1 is leading wave 2 by ∠θ. Which of the following is correct?

*v*

_{1}= V

_{m1}sin θ and

*v*

_{2}= V

_{m2}cos θ

*v*

_{1}= V

_{m1}sin ω

*t*and

*v*

_{2}= V

_{m2}sin (ω

*t*- θ)

*v*

_{1}= V

_{m1}sin (ω

*t*+ θ/2) and

*v*

_{2}= V

_{m2}sin ω

*t*

none of the above

⇒ Find the number of loop equation and number of possible trees for the given gr

7, 2097152

7, 262144

7.5764801

6, 823543

⇒ Which pair is correctly matched?

Symmetrical two port AD - BC = 1

Reciprocal two port

*z*

_{11}=

*z*

_{12}

Inverse hybrid parameter A, B, C, D

hybrid parameter (V

_{1}, I

_{2}) =

*f*(I

_{1}, V

_{2})

⇒ In the amplifier circuit of figure

*h*

_{fe}= 100 and

*h*

_{ie}= 1000 Ω. The voltage gain of amplifier is a

0.33

0.5

0.66

1

⇒ Out of the three transforms viz. Z-transform, Laplace transform and Fourier transform

all three are used in continuous time domain

all three are used in both continuous time domain and discrete time domain

Z transform is used in continuous time domain while Laplace and Fourier transforms are used in discrete time domain

Z transform is used is discrete time domain while Laplace and Fourier transforms are used in continuous time domain

⇒ For the system in the given figure the root l

is on real axis between points

*s*= -1 and

*s*= -3.6

is on real axis between points

*s*= 0 and

*s*= -1

is on real axis between points

*s*= -3.6 and

*s*= ∞

is on real axis between points

*s*= 0 and

*s*= -3.6

⇒ If luminance signal Y = 0.3 R + 0.59 G + 0.11 B, the hue of R - Y colour is

0.7 R - 0.59 G - 0.11 B

- 0.7 R + 0.59 G + 0.11 B

1.3 R - 0.59 G - 0.11 B

none of the above

⇒ Which of the following types of noise assumes greater importance at high frequencies?

Transit time noise

Shot noise

Impulse noise

Random noise

⇒ Hexadecimal number F is called to octal number

15

16

17

18

⇒ Is Schottky TTL, Schottky diode is used primary to

prevent saturation of the transistor

saturate the transistor

act as a switch

act as a controlling switch

⇒ For the circuit of the given figure, the output equatio

Y = ABCD

Y = AB + CD

Y = A + BCD

Y = ABC + D

⇒ A lead compensator is basically a

high pass filter

low pass filter

band stop filter

none of the above

⇒ A Ge diode operated at a junction temperature of 27°C. For a forward current of 10 mA, V

_{D}is found to be 0.3 V. If V

_{D}= 0.4 V then forward current will be

400 mA

475 mA

477 mA

480 mA

⇒ The thermal resistance of a BJT is about

100° C/W

200° C/W

20° C/W

2° C/W

⇒ Choose the correct option

- Mesh is the smallest loop of circuit
- Loop is smallest path of circuit
- Loop does not contain any mesh
- Loop may have one or more than one mesh

1, 2, 3, 4

3, 4, 2

1, 4

3, 2

⇒ The overall noise temperature T

_{e}, absolute temperature T and noise figure F are related as

T

_{e}= T(F - 1)

T

_{e}= F(T - 1)

T = T

_{e}(F - 1)

T

_{e}= (T)(F)

⇒ Consider the following stateme

1 and 2

2 and 3

3 and 4

4 and 5

⇒ In INHIBIT operation

output is 1 when both inputs are 0

output is 0 when blocking input is 1

output is 0 when blocking input is 0

output is 1 when blocking input is either 0 or 1

⇒ In operational Amplifier, Common mode voltage gain should be

0

∞

1

0.5

⇒ The silicon sample with unit cross-sectional area shown below is in thermal equilibrium. The following information is given: T = 300 K, electronic charge = 1.6 x 10

^{-19}C, thermal voltage = 26mV and electron mobility = 1350 cm

^{2}

2.16 x 10

^{4}A/cm

^{2}

1.08 x 10

^{4}A/cm

^{2}

4.32 x 10

^{3}A/cm

^{2}

6.48 x 10

^{2}A/cm

^{2}

⇒

Match the following:

List I (Operation in Basic) | List II (Priority) | ||
---|---|---|---|

A. | Exponentiation | 1. | 1 |

B. | Multiplication and division | 2. | 2 |

C. | Addition and subtraction | 3. | 3 |

D. | Expression within parenthesis | 4. | 4 |

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

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

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

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

⇒ For a Hertz dipole antenna, the Half Power Beam Width (HPBW) in the E-plane is

360°

180°

90°

45°

⇒

**Assertion (A):** A half cycle of sine wave can be expressed as sum of sine wave and another sine wave shifted by *T*/2 where T is the time period.

**Reason (R):** The function *u*(*t* - *t*_{0}) - *u*(*t* - *t*_{0} - T) is a gate function occuring at *t* = *t*_{0} and of duration T.

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 true, R is false

A is false, R is true

⇒ Compared to bipolar junction transistor, a JFET has

lower input impedance

high input impedance and high voltage gain

higher voltage gain

high input impedance and low voltage gain

⇒ Consider the following DO statement in Fortran 77

2

5

zero

⇒ The number of flip flops needed for a Mod 7 counter are

7

5

3

1

⇒ In a driving point function, the degrees of numerator and denominator polynomials in

*s*may differ by either zero or one only.

TRUE

FALSE

⇒

**Assertion (A):** In design of circuit using BJT, a derating factor is used.

**Reason (R):** As the ambient temperature increases, heat dissipation becomes slower.

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

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

A is true but R is false

A is false but R is true