Q1. | For type 0 system the starting point (i.e. ω = 0) of polar plot is finite and is on positive real axis. |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

View Answer
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 :**

⇒ Consider the following:

- Distortion
- Gain
- Bias stabilization
- Sensitivity
- Frequency response

1, 2 and 3

1, 3 and 5

2, 3 and 4

4 and 5

⇒ The element in the feedback circuit of a logarithmic amplifier using op-amp is

a resistor

a capacitor

an inductor

a diode

⇒ In the circuit, shown in figure, V

_{0}= V

_{i}. The values of 1,

*m*,

*n*are: (

*x*represents don't care conditi

0, 1, 1

∞, x, x

x, ∞, x

0, x, ∞

⇒ Maxterm designation for A + B + C is

M

_{0}

M

_{1}

M

_{3}

M

_{4}

⇒

**Assertion (A):** From the slope of the line in Figure, we can find permanent dipole moment of the molecules.

**Reason (R):** Total polarization of a polyatomic gas is given by P = *N*(a_{e} + a_{i} + μ^{2}_{p} / 3*k*T

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

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

A is true but R is false

A is false but R is true

⇒ If *x** _{k}* = 2

*for*

^{k}*k*≤ 0 and = 0 for

*k*> 0 X(

*z*) = 2/(2 -

*z*).

TRUE

FALSE

⇒ Thermal runaway is not possible in FET, because as the temperature of FET increases.

the mobility decreases

the transconductance increases

impedance of the source

power dissipation in the chip

⇒ Frequency shift keying is used mostly in

telegraphy

telephony

satellite communication

radio transmission

⇒ Which one of the following materials is used for making permanent magnets?

Steel

Carbon

Carbon-Steel

Graphite

⇒ Which type of fading causes serious distortion of modulated signal?

Selective fading

Interference fading

Absorption fading

Polarization fading

⇒ For the logic circuit given, what is the simplified Boolean funct

X = AB + C

X = BC + A

X = AB + AC

X = AC + B

⇒

List I (Bit Pattern) | List II (Register pairs) | ||
---|---|---|---|

A. | 00 | 1. | SP |

B. | 01 | 2. | B-C |

C. | 10 | 3. | D-E |

D. | 11 | 4. | H-L |

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

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

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

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

⇒ The scale of thermocouple instrument is linear.

TRUE

FALSE

⇒ Consider the following differences between QPSK and MSK

- The side lobes in MSK are relatively much smaller in comparison to the main lobe
- The spectrum of MSK has a main centre lobe which is 1.5 times as wide as the main lobe of QPSK
- The waveforms of both MSK and QPSK exhibit phase continuity

1 only

1 and 2 only

1, 2 and 3

2 and 3 only

⇒ What is the major cause of creeping in an energy-meter?

Over compensation for friction

Mechanical vibrations

Excessive voltage across the potential coil

Stray magnetic fields

⇒ For the amplifier in figure, β = 800. The mid-band voltage gain V

_{0}/V

_{i0< 1≈ 1800}

⇒ A capacitor behave to d.c. as

short-circuit

an open-circuit

it behaves to a.c.

none of these.

⇒ In the given figure

*x*

_{6de(ax1 + bx2 + cx3)(a + b + c) (x1 + x2 + x3) (d + e)(ax1 + bx2 + cx3) (d + e)a b c d e (x1 + x2 + x3)}

⇒ Electrons within a metal have energy levels from zero to Fermi level E

_{F}.

TRUE

FALSE

⇒ Choose the correct option

- Transit period is the time between two steady state
- Transient Response is the response due to internal energy stored in circuit
- Transit response is also called natural response
- Transit response arises due to presence of C and L in the circuit
- Transit is due to R, L, C in the circuit

4, 3, 2 , 1

5, 4, 3, 2

5, 4, 3, 1

5, 1, 4

⇒ Low frequency response of amplifier is mainly limited by

input capacitor

bypass capacitor

output capacitor

biasing capacitor

⇒ The factor η for a UJT is about

0.1

0.2

0.6

0.9

⇒ In all base driver amplifiers

ac collector voltage is 180° out of phase with ac base voltage

ac emitter voltage is 180° out of phase with ac base voltage

ac collector voltage is in phase with ac base voltage

none of the above

⇒ Minimum number of 2-input NAND gates required to implement the function F = (x + y) (Z + W) is

3

4

5

6

⇒

Match the following:

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

A. | Continuous and aperiodic | 1. | Fourier representation is continuous and aperiodic |

B. | Continuous and Periodic | 2. | Fourier representation is discrete and aperiodic |

C. | Discrete and aperiodic | 3. | Fourier representation is continuous and periodic |

D. | Discrete and periodic | 4. | Fourier representation is discrete and periodic |

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

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

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

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

⇒ The noise figure of individual stages of a two stage amplifier is 2.03 and 1.54 respectively. If gain of first stage is 62, the overall noise figure is

2.03

2.055

3.05

6.05

⇒ The function A

*e*where

^{st}*s*= s +

*j*ω represents

A phasor whose magnitude changes with time

A phasor whose frequency is ω

A phasor rotating in counterclockwise direction at angular frequency ω and whose magnitude increases with

*t*

A phasor rotating in clockwise direction at angular frequency ω and whose magnitude increases with

*t*

⇒ An instruction used to set the carry flag in a computer can be classified as

data transfer

arithmetic

Logical

program control

⇒ The L/C has the dimension of

time

capacitance

velocity

resistance

⇒ Which of the following, is not a piezoelectric material?

Rochelle salt

Quartz

Lithium sulphate

Sodium bicarbonate