Users Also Read

MCQ's Search Engine

Electrical Engineering

Mechanical Engineering

Civil Engineering

Automobile Engineering

Chemical Engineering

Computer Engineering

Electronics Engineering

Medical Science Engg

Q1. | A leakage capacitor can be represented by a capacitance C and resistance R in parallel C. |

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 :**

⇒ A 1000 kHz carrier wave modulated 40% at 40000 Hz is applied to a resonant circuit tuned to a carrier frequency and having Q = 140. What is the degree of modulator after transmission through the circuit?

0.4

0.2

0.27

0.54

⇒ An atom of a rare gas is placed is an electric field E. Then

the nucleus will be shifted in the direction of E by an amount which is proportional to E.

the nucleus will not be shifted.

the nucleus will be shifted in the direction of E by an amount which is independent of E.

the nucleus will be shifted in a direction opposite to that of E.

⇒ A UPS contains

rectifier

inverter

either rectifier or inverter

both rectifier and inverter

⇒ In a JK flip flop toggle means

set Q = 1 and Q = 0

set Q = 0 and Q = 1

change the output to the opposite state

no change in output

⇒ Electrical conductivity of metals expressed in ohm

^{-1}m

^{-1}is of the order of

10

^{10}

10

^{5}

10

^{-4}

10

^{-6}

⇒ For the K map in the given figure the simplified Boolean expressio

A C + A D + ABC

A C + A D + ABC

A C + A D + ACD

A C + A D + AB C

⇒ The primary reason for the widespread use of Si in semiconductor device technology is

abundance of Si on the surface of earth

larger band gap of Si in comparison to Ge

favourable properties of Silicon-dioxide (SiO

_{2})

lower melting point

⇒ For a given voltage four heating coils will give maximum heat when connected

in parallel

in series

with two parallel pairs in series

with one pair in parallel and the other two in series

⇒ In binomial arrays the elimination of secondary lobes takes place

at the cost of directivity

at the cost of gain

both (a) and (b)

none of the above

⇒ Two rectangular waveforms of duration t

_{1}and t

_{2}seconds are convolved. What is the shape of the resulting waveform?

Triangular

Rectangular

Trapezoidal

Semi-circular

⇒ For satellite communication, the frequency should be

equal to the critical frequency

more than the critical frequency

less than the critical frequency

none of these

⇒ An RLC series circuit has R = 7.07 Ω, L = .707 H and C = 7.07 μF. At Half power frequencies the circuit impedance is likely to be

7.07 Ω

10 Ω

14.14 Ω

20 Ω

⇒ Efficiency of a half wave diode rectifier is less than 40%.

TRUE

FALSE

⇒ Figure shows the self bias circuit for CE amplifier and its equivalent circuit. V

_{BB}and R

_{B}respectively

10 V and 4 k ohm

5 V and 4 k ohm

2 V and 4 k ohm

2 V and 10 k ohm

⇒ The MOS symbols shown indica

1, 3, 6

2, 4, 6

1, 3, 5

2, 3, 6

⇒ The

*v-i*characteristic shown in the given figure is

thermistor

photoconductor

varistor

none of the above

⇒ 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

⇒ Which of the following method cannot be used to increase the bandwidth for cascaded RF amplifier stages?

Wave traps in each stage

Stagger tuning

A shunt damping resistor across each tuned circuit

Doubled tuned transformers with tighter coupling

⇒ If it is desired to have low output impedance in an amplifier circuit then we should use

common collector circuit

common base circuit

common emitter circuit

either (b) or (c)

⇒ Which of these are 16 bit microprocessors?

80286

MC68000

Z8000

All

⇒ If E is energy level of electron and E

_{F}is fermi level, and T = 0 and E > E

_{F}, then

the probability of finding an occupied quantum state of energy higher than E

_{F}is zero

all quantum states with energies greater than E

_{F}are occupied

some quantum states with energies greater than E

_{F}are occupied

majority of quantum states with energies greater than E

_{F}are occupied

⇒ In the television system in India, each frame is scanned

100 times

50 times

20 times

10 times

⇒ Standard AM radio broadcasts are confined to

MF

HF

VHF

UHF

⇒ An instruction using immediate addressing mode in 8085 is

2 bytes long

3 bytes long

2 or 3 bytes long

1 or 2 or 3 bytes long

⇒ In an amplifier if conductor during the cycle is from 0 to 90° and again from 180° to 270°, the amplifier will be termed as

class A

class B

class C

class AB

⇒ In an op-amp comparator, the positive or negative output is

saturated

amplifier

unsaturated

any of the above

⇒ Choose the function

*f*(

*t*), - ∞ <

*t*< + ∞, for which a Fourier series cannot be defined

3 sin (25

*t*)

4 cos (20

*t*+ 3) + 2 sin (10

*t*)

exp - | t | sin 25

*t*

1

⇒

Match the following:

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

A. | Reflex Klystron | 1. | High efficiency |

B. | Dielectric loaded wave guide | 2. | Slow wave structure |

C. | TWT | 3. | Cross field device |

D. | Multi Cavity Klystron | 4. | Oscillator |

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

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

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

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

⇒ The enhancement type MOSFET is called a

normally on MOSFET

normally off MOSFET

P-type MOSFET

N-type MOSFET

⇒ The system in the given fi

will be unstable due to the presence of positive feedback in the inner loop

may be stabilized by the negative feedback outer loop

can never be stable

will always be stable