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Q1. | Thyristors connected in series need : |

A. | static equalizing circuit [Wrong Answer] |

B. | dynamic equalizing circuit [Wrong Answer] |

C. | both static and dynamic equalizing circuits [Correct Answer] |

D. | none of the above [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 :**

⇒ The main drawback in the performance of shunt peaked wide band amplifier is

two low gain at low frequency

poor phase response

reduce frequency at middle frequency

that the maximum gain of the stage is small

⇒

Match the following:

List I (Octal) | List II (Hexadecimal) | ||
---|---|---|---|

A. | 66 | 1. | 3 F |

B. | 77 | 2. | 36 |

C. | 55 | 3. | 27 |

D. | 47 | 4. | 3D |

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

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

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

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

⇒ If the secondary burden of a CT 15 VA and secondary current is 5 A, the load impedance of CT is

0.6 Ω

5 Ω

6 Ω

10 Ω

⇒ If the characteristic equation of a closed loop system is

*s*

^{2}+ 2

*s*+ 2, then the system is :

over damped

critically damped

under damped

undamped

⇒ The spins in a ferrimagnetic material are

all aligned parallel

partially aligned antiparallel without exactly cancelling out sublattice magnetisation

randomly oriented

all aligned antiparallel such that the sublattice cancels out exactly

⇒ Poynting vector is associated with which of the following?

Power flow in electromagnetic

Flux in magnetic field

Charge in electrostatic field

Current in electrostatic field

⇒ Assuming accumulator contain A 64 and the carry is set (1). What will accumulator (A) and carry (CY) contain after ANA A?

A 6 H, 1

A 6 H, 0

00 H, 0

00 H, 1

⇒

Match the following:

List I (Characteristic equation) | List II (Degree of damping) | ||
---|---|---|---|

A. | s^{2} + 15s + 56.25 | 1. | Undamped |

B. | s^{2} + 5s + 6 | 2. | Underdamped |

C. | s^{2} + 20.25 | 3. | Critically damped |

D. | s^{2} + 4.55s + 42.25 | 4. | Overdamped |

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

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

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

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

⇒ Consider the CMOS circuit shown, where the gate voltage V

_{G}of the n-MOSEFT is increased from zero, while the gate voltage of the p-MOSFET is kept constant at 3 V. Assume that, for both transistor, the magnitude of the threshold voltage is 1 V and the product of the transconductor parameter and the (W/L) ratio, i.e. the quality μC

_{0x}(W/L), is 1mA. V

^{-2Both the MOSFET are in saturation regionBoth the MOSFET are in triode regionn-MOSFET is in triode and p-MOSFET is in saturation regionn-MOSFET is in saturation and p-MOSFET is in triode region}

⇒ Which of the following is a valid real constant?

-81.56

73

10254,1

42

⇒ The numbers of accelerating anodes in a CRO is

1

2

3

4

⇒ As regards single phase dual converter

the change in operation from one quadrant to the other is faster in non-circulating current mode

the change in operation from one quadrant to the other is faster in circulating current mode

the time response to change in operation from one quadrant to other is the same in both the modes

the time response to change in operation from one quadrant to the other may be faster in any of the two modes

⇒ For class B operation the theoretical maximum efficiency is

1

0.785

0.5

0.275

⇒ If a line is terminated in characteristic impedance Z

_{0}, the input impedance measured at the input will be

Z

_{0}

Z

_{0}/2

Zero

infinite

⇒ The leakage current in CB configuration may be around

few micro amperes

few hundred micro amperes

few milliamperes

few hundred milliamperes

⇒ In SSB generation, the most commonly used filter is

low pass

RC

LC

mechanical

⇒ A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What will be the effect on output if the amplifier's gain is twice that required by the Barkhausen criterion?

Linear oscillations

Non-linear oscillations

Damped oscillations

No oscillations

⇒ Binary 1000 will be the result of which of the following?

Binary 1000 - 100

Binary 1011 - 1111

Binary 1111 - 111

Binary 11111 - 1111

⇒ For a particular type of memory the access time and cycle time are 200 ns each. The maximum rate at which data can be accessed by

2.5 x 10

^{6}/s

5 x 10

^{6}/s

0.2 x l0

^{6}/s

10

^{6}/s

⇒ Given figure shows a 90° sector of spherical reflector with vertex 'V', centre of curvature 'C' and equal distances VD, DF, FE and EC. When a beam of EM wave is incident parallel to the axis, all the energy will pass through the reg

VD

DF

EF

EC

⇒ Equipotential surfaces about a point charge are in which one of the following forms?

Sphere

Planes

Cylinders

Cubes

⇒ Which statement is correct?

BJT and MOSFET are current controlled devices

BJT is voltage controlled and MOSFET is current controlled device

BJT and MOSFET are voltage controlled devices

BJT is current controlled and MOSFET is voltage controlled device

⇒ The current rating of a cable depends on

length of cable

diameter of cable

both length and diameter of cable

none of the above

⇒ In a proportional plus integral control action

proportional gain K

*is adjustable but integral time T*

_{p}*is constant*

_{i}proportional gain K

*is adjustable but integral time T*

_{p}*is adjustable*

_{i}both proportional gain K

*and integral time T*

_{p}*are adjustable*

_{i}both proportional gain K

*and integral time T*

_{p}*are constant*

_{i}⇒ At 0 K the forbidden energy gap in intrinsic semi conductor is about

10 eV

6 eV

1 eV

0.2 eV

⇒ The output

*Y*of the circuit shown in the figur

(A + B) C + DE

AB + C(D + E)

(A + B) C + D + E

(AB + C) . DE

⇒ The equivalent form of the logical expression ABC + A BC + ABC + ABC + AB C is

C + (A ⊕ B)

(A + B + C)(A + B + C)

(A + B + C)(A + B + C)(A + B + C)

(A + B + C)(A + B + C)(A + B + C)

⇒ The output of a Piezoelectric crystal has

low amplitude and low impedance

high amplitude and low impedance

low amplitude and high impedance

high amplitude and high impedance

⇒ A T network is inserted between source and R as shown in figure. The resistance seen by the source remains the same with or without T network when

5 Ω

10 Ω

15 Ω

20 Ω

⇒ For pole-zero plot shown, the system is ________

minimum phase

maximum phase

mixed phase

none of these