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Q1. | For a push pull circuit the most favoured biasing method is |

A. | self bias [Wrong Answer] |

B. | emitter bias [Wrong Answer] |

C. | diode bias [Correct Answer] |

D. | collector bias [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss 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 :**

⇒ In a microstrip transmission the signal can be easily redirected by changing the centre strip.

TRUE

FALSE

⇒

**Assertion (A):** A half wave controlled rectifier has poorer efficiency and higher ripple factor than a full wave controlled rectifier.

**Reason (R):** The use of a freewheeling diode in half wave controlled rectifier circuit improves the waveform of load current and circuit power factor.

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

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

A is correct but R is wrong

A is wrong but R is correct

⇒

**Assertion (A):** The speed of a shaft can be measured by using a dc tacho generator.

**Reason (R):** A two phase servometer can also be used as a speed transducer.

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

⇒ CCIR system B employs

625 lines

625 lines with 2 : 1 interlace

625 lines with 4 : 1 interlace

500 lines with 2 : 1 interlace

⇒ In a single phase full wave ac regulator feeding R-L load, the gate pulses

are always of short duration

may be of short duration

should be rectangular with width (p - a)

cannot be rectangular with width (p - a)

⇒ For the single rectangular pulse of the given fi

TRUE

FALSE

⇒ The input impedance of a non-inverting amplifier is very low.

TRUE

FALSE

⇒ In the given figure the reflection coefficient at source en

1

-1

42738

-1/3

⇒

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

⇒

**Assertion (A):** Different symbols are used for different gates

**Reason (R):** IEEE symbols are the same as traditional symbols for gates.

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

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

A is true, R is false

A is false, R is true

⇒ Binary 1000 multiplied by binary 1000 gives

10000

100000

1000000

10000000

⇒ A practical Parallel resonant circuit has a coil in Parallel with a 0.14 μf capacitor. The coil has an inductance of 1 mH and a resistance of 10 ohms. The Q of the circuit is

1000

100

10

1

⇒ In figure the voltage drop across diode is 0.7 V. Then the voltage across diode during negative half cycl

10 V

9.3 V

zero

10.7 V

⇒ Gain margin and phase margin can be determined from Bode plots as well as Nyquist plot.

TRUE

FALSE

⇒ In the circuit, S was initially open. At time

*t*= 0, S is closed. When the current through the inductor is 6 A, the rate of change of current through the resistor is 6 A/s. The value of the inductor woul

1 H

2 H

3 H

4 H

⇒ An LVDT is used to measure displacement. The LVDT feeds a Voltmeter of 0-5 V range through a 250 gain amplifier. For a displacement 0.5 mm the output of LVDT is 2 mV. The sensitivity of instrument is

0.1 V/mm

0.5 V/mm

1 V/mm

5 V/mm

⇒ For type 1 system the velocity lag error is

inversely proportional to bandwidth of system

directly proportional to gain constant

inversely proportional to gain constant

independent of gain constant

⇒ The

*v*-

*i*characteristics of a diode may be linear or non linear.

TRUE

FALSE

⇒ Two capacitors of 1 μF and 2 μF are connected in series across a 10 V dc battery. After the capacitors have been charged, the charges across the two capacitors will be

10 μC each

20 μC each

10 μC and 20 μC

20 μC and 10 μC

⇒ The first pulse in a TV remote control is

start pulse

preliminary pulse

either start pulse or preliminary pulse

erase pulse

⇒ If ω is the frequency of modulating voltage in FM, the modulation index is proportional to

ω

1/ω

ω

1/ω

⇒ If

*f*(

_{h}*t*) is the Hilbert transform of

*f*(

*t*), and

*f*(

*t*) is a real valued signal, the pre-envelope of

*f*(

*t*) is

*f*(

*t*) -

*jf*(

_{h}*t*)

*f*(

*t*) +

*jf*(

_{h}*t*)

*f*(

_{h}*t*) +

*jf*(

*t*)

*f*(

_{h}*t*) -

*jf*(

*t*)

⇒ The output

*y*(

*t*) of a continuous-time system

*S*for the input

*x*(

*t*) is given

S is linear and time-invariant

S is linear and time-varying

S is non-linear and time-invariant

S is non-linear and time-varying

⇒ In a conventional AM superhetrodyne receivers, the detectors employed to extract intelligence include

Peak detectors

Ratio detectors

PLL

Slope detectors

⇒ The graph of a network has 6 branches with 3 tree branches. The minimum number of equations required for solution of network is

2

3

4

5

⇒ The energy of constant amplitude complex valued exponential sequence is ...

A

^{2}

∞

1

0

⇒ 'WRITE' is a

Word processor

Line editor

Text editor

Column editor

⇒ Consider the transmission line of length 37.5 cm, which is terminated into zero resistance. This line is being exited by a source of 1 GHz which has an internal impedance of 50 Ω. What is the input impedance of the line as seen by the source?

50 Ω

Zero Ω

100 Ω

Infinite Ω

⇒ Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

TTL

CMOS

ECL

TTLLS

⇒ The binary number 101100.110 in octal number will be

152.6

154.6

145.6

174.6