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Q1. | For an unstable system the gain margin is indicative of how much the gain should be decreased to make the system stable. |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

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

⇒ Consider Pole zero diagram as shown, If two Poles are moved in opposite direction towards ω = p/2 and -p/2, the filter wil

change to high pass filter

change to Band Pass filter

remains same

change to LPF

⇒ Equipment using BCD numbers

pocket calculators

electronic counter

digital voltmeters

all of the above

⇒ The force in a magnetic field is given by F =

*qv*B

F and

*q*are perpendicular and

*v*and B are perpendicular

F and

*q*only are perpendicular to each other

F and

*v*, F and B are mutually perpendicular to each other and

*v*and B at any angle between them

All the four components are perpendicular to each other

⇒ The value of the inductance of coil in which a current increases linearly from zero to 0.1A in 0.2 second producing a voltage of 5 volts is __________ .

2.5

5

10

20

⇒ For a high pass filter, β = p in attenuation band.

TRUE

FALSE

⇒

**Assertion (A):** The gall tinsley potentiometer is a coordinate potentiometer and has two exactly similar potentiometers.

**Reason (R):** An ac potentiometer may measure the unknown voltage in polar form or rectangular coordinate form.

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 R is false

A is false R is true

⇒ Which addressing mode is suitable only for these instructions in which there is only one operand?

Implicit

Register

Direct

Immediate

⇒ 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

⇒ The unit of displacement density is

volt/metre

ampere/metre

^{2}

coulombs/metre

coulombs/metre

^{2}

⇒ Half wave sysmmetry means

*f*(

*t*) = -

*f*(

*t*± T/2).

TRUE

FALSE

⇒ The term VLSI generally refers to a digital IC having

more than 1000 gates

more than 100 gates

more than 1000 but less than 9999 gates

more than 100 but less than 999 gates

⇒ The band gap of Si at room temperature is

1.3 eV

0.7 eV

1.1 eV

1.4 eV

⇒ In a biased JFET (Figure) the shape of the channel is as shown bec

it is the property of material used

the drain end is more reverse biased than source end

drain end is more forward biased than source end

impurity profile changes with distance

⇒ Figure shows the feedback network of one of the very popular types of sinusoidal oscillators. Which one is t

Weinbridge oscillator

Hartley oscillator

Colpitt's oscillator

R-C phase shift oscillator

⇒ The amplifier network is shown bel

6.42 kΩ, 5.6 kΩ

6.42 Ω, (5.62) kΩ

6.4kΩ, (5.62) kΩ

6.42 Ω, 5.6 kΩ

⇒ A capacitor used for power factor correction is single phase circuit decreases

power factor

line current

both line current and p.f.

the line current and increases p.f.

⇒ A colour monitor usign 16 bits at a resolution of 600 x 400 pixels needs a memory of

240000 B

9600 B

6400 B

480000 B

⇒ 9's complement of 56

_{10}is

43

_{10}

84

_{10}

65

_{10}

53

_{10}

⇒ Strip lines are used at

microwave frequency

low frequency

High frequency

at any frequency

⇒ Given figure is the voltage transfer characteristi

an N MOS inverter with enhanced mode transistor as load

an N MOS inverter with depletion mode transistor as load

a CMOS inverter

BJT inverter

⇒ A broadside array consisting of 200 cm wavelength with 10 half-wave dipole spacing 10 cm. And if each array element feeding with 1 amp. current and operating at same frequency then find the radiated power

730 W

73 W

100 W

None

⇒

Match the following:

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

A. | Serial Binary adder | 1. | (2n - 1)t_{pd} |

B. | Ripple carry adder | 2. | (n - 1)t_{pd} |

C. | Carry look ahead binary adder | 3. | Operation time independent of size |

4. | 6t for 4 bit carry look ahead adder_{pd} |

A-2, B-1, C-3

A-2, B-1, C-4

A-1, B-2, C-4

A-1, B-2, C-3

⇒ The Nyquist plot of a stable, transfer function

*G*(

*s*) is shown in the figure. We are interested in the stability of the closed loop system in the feedback configuration sh

6 dB and 180°

3 dB and 180°

6 dB and 90°

3 dB and 90°

⇒ In electromagnetic wave polarization is caused by

refraction

reflection

longitudinal nature of electromagnetic waves

transverse nature of electromagnetic waves

⇒ Surface impedance at high frequencies is a consideration for

good conductors

semiconductors

dielectrics

ferrites

⇒ If PRIN = 200.0 and BINT = 0.0525 the result of expression

`INCOME = PRIN * (1 + BINT)`

will be210

210.5

210.5

210.5

⇒ The instruction

`MOV M, `*r*

in 8085causes content of register

*r*to be moved to memory location whose address is in register H, L and uses register indirect addressing mode

causes the content of memory location whose address is in register H, L to move to register

*r*and uses register indirect addressing mode

causes the content of register

*r*to be moved to memory location whose address is in register H, L and uses immediate addressing mode

causes the content of memory location whose address is in register H, L to move to register

*r*and uses immediate addressing mode

⇒ The relationship of hysteresis loss to maximum flux density was first determined by

C. Steinmetz

G.R. Kirchoff

Mr. Laplace

Mr. Ampere

⇒ The greatest negative number which can be stored is 8 bit computer using 2's complement arithmetic is

-256

-128

-255

-127

⇒ Which of the following is not a valid variable in FORTRAN 77?

BRG

VS

VS 3A

3 VSA