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Q1. | As compared to BJT, MOSFET has |

A. | lower switching losses and higher conduction losses [Correct Answer] |

B. | higher switching losses and higher conduction losses [Wrong Answer] |

C. | higher switching losses and lower conduction losses [Wrong Answer] |

D. | lower switching losses and lower conduction losses [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 :**

⇒ The antenna current of an AM transmitter is 8 A. When only the carrier is sent, but it increases to 8.93 A. When the carrier is sinusoidally modulated. The percentage modulation is nearly

0.9

0.8

0.75

0.7

⇒ In a transistor with normal bias

the emitter junction has a low resistance

the emitter junction has a very high resistance

the emitter junction supplies majority carries into the base region

none of the above

⇒ Which of the following is not a transducer in true sense?

Thermocouple

Piezo electric

Photo electric cell

LCD

⇒ In a TWT the phase velocity of the axial component of the field on the slow wave structure is kept

equal to velocity of electron

slightly less than velocity of electron

slightly more than velocity of electron

equal to velocity of light in free space

⇒ De-emphasis circuit is used

to attenuate high frequencies

to attenuate low frequencies

to attenuate mid-band frequencies

None of the above

⇒ The noise figure of FET circuit is

independent of the quiescent point

dependent on the quiescent point only

dependent on the triggering mechanism

independent of all above

⇒ Value of 'K' for the system for which the system is stab

*K*< 1

*K*> 1

*K*< 2

*K*> 2

⇒ Which amplifier will be preferred for highest gain?

Darlington's pair

Single stage amplifier

Cascade amplifier

Depends on the circuitry

⇒ The current

*i*(

*t*), though a 10 Ω resistor in series with an inductance, is given by

*i*(

*t*) = 3 + 4 sin (10

*t*+ 45°) + 4 sin (300

*t*+ 60°) Amperes. The RMS value of the current and the power dissipated in the circuit are

41 A, 410 W, respectively

35 A, 350 W, respectively

5 A, 250 W, respectively

11 A, 1210 W, respectively

⇒ A high resistance was measured by loss of charge method. The voltmeter resistance was 10

^{10}ohms. The calculation gave the value of unknown resistance as 0.8 x 10

^{9}ohms. The true value of resistance is

0.8 x 10

^{9}Ω

less than 0.8 x 10

^{9}Ω

more than 0.8 x 10

^{9}Ω

either (b) or (c)

⇒ Surge current rating of an SCR is

the maximum repetitive surge current in which the SCR can withstand

the maximum non-repetitive surge current in which the SCR can withstand

the maximum repetitive or non repetitive surge current in which the SCR can withstand

the maximum surge current in which the SCR can withstand if both surge current and steady current exist together

⇒ 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

⇒ Consider the following statements about PCM

- PCM is not noise resistant
- PCM requires complex encoding and quantizing circuitry
- PCM requires large bandwidth

1 only

1, 2, 3

2, 3

1 and 3

⇒ Pick the odd-one out

Hartley Oscillator

Colpitt oscillator

Clapp oscillator

Weinbridge oscillator

⇒ Which of the following circuits can operate class AB for audio power output?

Emitter follower

Push pull

Cascade

Darlington pair

⇒ The Boolean function A + BC is a reduced form of

AB + BC

(A + B) . (A + C)

AB + ABC

(A + C) . B

⇒ For a series circuit of variable R and X

_{L}, the impedance locus is

a straight line parallel to X axis in first quadrant

a straight line parallel to X axis in fourth quadrant

a straight line parallel to Y axis in second quadrant

a straight line parallel to Y axis in first quadrant

⇒ The circuit shown depic

voltage series negative feedback

voltage shunt negative feedback

current series negative feedback

current shunt negative feedback

⇒ A class D chopper

can operate in first quadrant only

can operate in second quadrant only

can operate in either first or fourth quadrant

can operate in all the quadrants

⇒ Directive gain of elementary doublet is

100

10

1.5

0.5

⇒ For a junction FET in the pinch off region as the drain voltage is increased, the drain current

becomes zero

abruptly decreases

abruptly increases

remains constant

⇒ To select one out of N equally probable events, the number of bits required is

log

_{2}N

log

_{10}N

log

_{e}N

N

⇒ Surface impedance at high frequencies is a consideration for

good conductors

semiconductors

dielectrics

ferrites

⇒ The phase difference between them is __________ degrees.

15

50

60

105

⇒ The primary function of lag compensator is to provide sufficient

gain margin

phase margin

both gain margin and phase margin

either (a) or (b)

⇒ An

*m*derived and constant

*k*filter section connected in cascade give

proper impedance matching

proper phase shift characteristic

proper attenuation characteristic

all of the above

⇒ The number of FF required for a divide by 12 circuit is

16

12

8

4

⇒ A leaky dielectric has ∈

_{r}= ∈

_{r}

^{'}-

*j*∈

_{r}

^{"}. If a field

*E*is applied, the current component in phase with E is proportional to ∈

_{r}

^{"}.

TRUE

FALSE

⇒ The filter in figure, uses ideal op-amp. I

low pass filter

high pass filter

band pass filter

band stop filter

⇒ In 8085 microprocessor, which of the following interrupts has the lowest priority?

RST 5.5

RST 7.5

TRAP

INTR