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Q1. | n channel FETs are better as compared to p-channel FET because |

A. | they are more efficient [Wrong Answer] |

B. | they have high switching time [Wrong Answer] |

C. | they have higher input impedance [Wrong Answer] |

D. | mobility of electrons is more than that of holes [Correct Answer] |

View Answer
Explanation:-
Answer : DDiscuss 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 :**

⇒ For an amplifier the input output signals are shown in figure. The class of amplifie

A

AB

B

C

⇒ At resonance, the parallel circuit constituted by an iron-cored coil and a capacitor behaves

open circuit

short circuit

pure resistor of value R

pure resistor of value much higher than R

⇒ For wired AND connection we should use

TTL gates with active pull up

TTL gates with open collector

TTL gates without active pull up and with open collector

any of the above

⇒ The series element for a prototype high pass filter is

resistive

inductive

capacitive

combination of L and C

⇒ If X(

*z*) = (1 - a

*z*

^{-1})

^{-1}and |a| < |

*z*|, the initial value

*x*

_{0}= 0

TRUE

FALSE

⇒ What is the numerical aperture an optical fiber when critical angle is 30°?

0.5

0.704

0.866

0.2

⇒ Which materials find application in MASER?

Diamagnetic

Paramagnetic

Ferromagnetic

Ferrimagnetic

⇒ Aperture circuit produces __________ in sample hold circuit.

the total sampling time

delay between the instance at which hold command is initiated and the instance at which O/P starts tracking I/P

the time taken by O/P to settle within the specified 1% error band, that of the I/P

time required by holding capacitor to reach upto the level close to input

⇒ A variable reluctance type tachometer has 150 teeth on rotor. The counter records 13500 pulse/sec. The rotational speed is

4800 RPM

5400 RPM

6000 RPM

7200 RPM

⇒ The Lissajous pattern observed on screen of CRO is a straight line inclined at 45° to x axis. If

*X*-plate input is 2 sin ω

*t*, the

*Y*-plate input is

2 sin ω

*t*

2 sin (ω

*t*+ 45°)

2 sin (ω

*t*- 45°)

22 sin ω

*t*+ 45°)

⇒ In the graphical analysis of CE amplifier circuit, the intersection of base current and dc load line is called

saturation point

cut off point

Q point

operating point

⇒ Frequency response approach is a simple approach to control system design.

TRUE

FALSE

⇒ What is the period of the sinusoidal signal

*x*(

*n*) = 5 cos [0.2 pn]?

10

5

1

0

⇒ The reflection coefficient on a 500 m long transmission line has a phase angle of - 150°. If the operating wavelength is 150 m, what will be the number of voltage maxima on the line?

0

3

6

7

⇒ In the given figure, if R = X

*, voltage gai*

_{C}0 dB

3 dB

-3 dB

20 dB

⇒ Geosynchronous communication satellites travel around the earth in circular orbits with a forward speed of about __________ km/h.

11200

0

36000

22800

⇒ The number of roots of

*s*

^{3}+ 2

*s*

^{2}+ 7

*s*+ 3 = 0 in the left half of the s-plane is :

zero

one

two

three

⇒

Match the following:

List I (Logic family) | List II (Characteristic) | ||
---|---|---|---|

A. | TTL | 1. | Maximum power consumption |

B. | ECL | 2. | Highest packing density |

C. | NMOS | 3. | Least power consumption |

D. | CMOS | 4. | Saturated Logic |

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

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

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

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

⇒ Which of the following are the properties of a medium?

Permeability, flux, magnesium

Permittivity, permeability, insulation

Permeability, resistivity, conductivity

Permittivity, permeability, conductivity

⇒ For the discrete time system of the given fig

*y*= 0.5

_{k}*u*-

_{k - 2}*u*- 0.25

_{k}*y*- 1

_{k}*y*= 0.5

_{k}*u*

_{k}_{ - 1}-

*u*- 0.25

_{k}*y*- 1

_{k}*y*= 0.5

_{k}*u*

_{k}- u_{k}_{ - 1}- 0.25

*y*- 1

_{k}*y*= 0.5

_{k}*u*

_{k}_{ - 1}-

*u*

_{k}_{ - 1}- 0.25

*y*- 1

_{k}⇒ A certain sound has 10000 times more energy than another sound. The number of times it would sound stronger to a listener is

40

10000

100

10

⇒

Match the following:

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

A. | SSB Modulation | 1. | Transmission line |

B. | Δ . B = 0 | 2. | Hilbert transform |

C. | Model dispersion | 3. | Faraday's law |

4. | Absence of magnetic monopoles | ||

5. | Waveguides | ||

6. | Phase locked loop |

A-1, B-3, C-5

A-5, B-4, C-2

A-6, B-4, C-5

A-2, B-4, C-5

⇒ If X(

*z*) = 2

*az*

^{-1}/(1 -

*az*

^{-1})

^{3}and |

*a*| < |

*z*|, then the initial value

*x*

_{0}is

0

1

∞

2

⇒ The general purpose register code for accumulator in 8085 is

111

0

1

1111

⇒ 74 HC series can sink upto 4 mA. The 74 LS series has I

_{IL(max)}- 0.4 mA. How many 74 LS inputs be driven by 74 HC output?

100

none

8

10

⇒ In a common emitter BJT amplifier, the maximum usable supply voltage is limited by

avalanche Beakdown of Base-Emitter junction

collector emitter breakdown voltage with base open(βV

_{CEO})

collector emitter breakdown voltage with emitter open(βV

_{CEO})

zener break down voltage of the emitter base junction

⇒ Consider the following statement associated with bipolar junction transistor and JFET

- The former has higher input impedance than the later
- The former has higher frequency stability than the later
- The later has lower noise figure than the former
- The later has higher power rating than the former.

1 and 2 are correct

2 and 3 are correct

3 and 4 are correct

1 and 4 are correct

⇒ A series RC circuit has R = 5 Ω and C = 10 μF. The current in the circuit is 5 sin 20000

*t*. The applied voltage is

252 sin (20000

*t*+ 45°)

252 sin (20000

*t*- 45°)

252 sin 20000

*t*

252 sin (20000

*t*- 90°)

⇒ Foster Seeley discriminator uses a

single tuned circuit

double tuned circuit with primary and secondary tuned to the same frequency

double tuned circuit with primary and secondary tuned to the different frequency

none of the above

⇒ Which of the following is used in the sterilization of water?

Hydrogen bromide

Oxygen

Ozone

Caustic potash