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Q1. | Two wattmeter method of 3-phase power measurement can be used to find |

A. | total active power [Wrong Answer] |

B. | total active power and power factor [Wrong Answer] |

C. | total active power and reactive power [Wrong Answer] |

D. | total active power, power factor, apparent power, and reactive power [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 :**

⇒ In a typical microcomputer data transfer takes place between

μP and memory

μP and I/O devices

memory and I/O devices

all of the above

⇒ Consider the following statements: In a differential amplifier using JFET, the differential output offset is due to

- mismatch between FET parameters
- difference in values of resistances used in circuit
- variation in supply voltage.

1 and 2

1, 2, 3

2, 3

1, 3

⇒ In a thyristor, the forward breakover voltage

is constant

may be constant or may depend on gate current

decreases as gate current is increased

increases as gate current is increased

⇒ The design of wave filter is based on characteristic impedance which is

pure resistance

pure reactance

pure resistance in pass band and pure reactance in attenuation band

pure reactance in pass band and pure resistance in attenuation band

⇒ An RC circuit initially at rest has a step signal. The response V(

*t*) across C is V(

*t*) = 1 -

*e*

^{-at}, If now there is an initial voltage on C of 2 volts for the same step signal, V(

*t*) is now

1 +

*e*

^{-at}

1 + 2

*e*

^{-at}

2 -

*e*

^{-at}

3 -

*e*

^{-at}

⇒ A generator with an internal resistance of 600 Ω drives an amplifier whose input resistance is 400 Ω. The generator's open circuit voltages is 1 mV; the amplifier develops 100mV across an 8kΩ load. The voltage multiplication is

25

50

125

250

⇒ The log magnitude for the system in the given figure is (where T =

20 log (1 + ωT)

-20 log (1 + ωT)

-10 log (1 + ω

^{2}T

^{2})

-20 log (1 + ω

^{2}T

^{2})

⇒ The statement

`IMPLICIT INTEGER (A - F)`

in FORTRAN identifiesall variable names which begin with A, B, C, D, E or F as being of integer type

all character names which begin with A, B, C, D, E, or F as being of integer type

all variable names which begin with A and have 6 characters

none of the above

⇒ The self bias provides

stable Q point

large voltage gain

high input impedance

high base current

⇒ Unit doublet is the Laplace inverse of __________ .

1/

*s*

*s*

^{2}

*s*

none of these

⇒ In the given figure the E and H lines in a coaxial c

The radial lines are E lines and circular lines are H lines

Radial lines are H lines and circular lines are E lines

The directions of E and H lines are wrong

Radial lines may be E and H lines depending an direction of current

⇒

**Assertion (A):** Microprocessors 8086 and 8088 are very similar in organisation and have identical instruction sets.

**Reason (R):** If clock speed is same the execution time of 8088 and 8086 are exactly equal.

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 correct R is wrong

A is wrong R is correct

⇒ The capacitance of a parallel plate capacitor varies as per the equation C(

*t*) = C

_{0}(1 - cos ω

*t*). It is connected to a battery of V volts. The equation for current is

ωC

_{0}V (1 - cos ω

*t*)

ωC

_{0}V(1 - sin ω

*t*)

ωC

_{0}V (1 - sin 2ω

*t*)

ωC

_{0}V sin ω

*t*

⇒ In a positive edge triggered JK flip flop, J = 1, K = 0 and clock pulse is rising Q will

be 0

be 1

show no change

toggle

⇒ Which of the following functions would have only odd powers of

*x*in its Taylor series expansion about the point

*x*= 0?

sin (

*x*

^{3})

sin (

*x*

^{2})

cos (

*x*

^{3})

cos (

*x*

^{2})

⇒ The function shown in figure, can represent a probability density function for A _______

A = 1/4

A = 1/6

A = 1/9

A = 1/2

⇒ Which configuration is suitable for impedance matching?

CB

CE

CC

CB and CE

⇒ A Hartley oscillator is used for

very low frequencies

radio frequencies

micro wave frequencies

audio frequency

⇒ Which of the following is not a necessary advantage of negative feedback system?

Feedback improves speed of response

Feedback improves stability

Feedback reduces effect of variations in system parameters

Feedback reduces the effect of external disturbances

⇒ Huffman code is also known as redundancy code

TRUE

FALSE

in some cases

depend upon efficiency

⇒ A characteristic property of crystal is its periodicity of structure.

TRUE

FALSE

⇒ A circular waveguide carries TE

_{11}mode whose radial electric-field is given

10 cm

3p cm

2p cm

8 cm

⇒ The statement that the line integral of magnetic field about any closed path is exactly equal to the direct current enclosed by that path, is known as

Ampere's circuital law

Coulomb's law

Electrostatic's theory

None of the above

⇒ If the intrinsic resistivity at 300°K is 0.37

*ohm-m*and the electron and hole mobilities at 300°K are 0.28 and 0.15

*m*

^{2}/volt-sec, then the intrinsic carrier concentration of Germanium is __________ .

2.92 x 10

^{19}/

*m*

^{3}

2.92 x 10

^{-19}/

*m*

^{3}

1.92 x 10

^{19}/

*m*

^{3}

3.92 x 10

^{19}/

*m*

^{3}

⇒

Match the following:

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

A. | Direct addressing | 1. | MOV A, M |

B. | Register addressing | 2. | MOV C, A |

C. | Register indirect addressing | 3. | LDA 7 |

D. | Immediate addressing | 4. | STA FFC |

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

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

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

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

⇒ In a semi-conductor diode, the barrier offers opposition to

holes in P-region only

free electrons in N-region only

majority carriers in both regions

majority as well as minority carriers in both regions

⇒ In the case of the circuit shown in the figure, the collector current I

_{C}will be, if β = 100, V

_{BE}= 0.7 V, I

_{CO}= 0.1 βA at 20&d

2.26 mA

1.85 mA

0.357 mA

0.185 mA

⇒ In figure, the current supplied by battery immediately after switching on the circui

0.0416666666666667

0.166666666666667

0.416666666666667

0

⇒ The frequency response of an ideal tuned amplifier should be as represented in figur

A

B

C

D

⇒ Consider the following DO statement in Fortran 77

11

10

4