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Q1. | While drawing vector diagram for a series circuit, the reference vector is |

A. | voltage [Wrong Answer] |

B. | current [Correct Answer] |

C. | power [Wrong Answer] |

D. | phase angle [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss 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 :**

⇒ Read the following statements about sets

- If A and B are sets then A + B denotes union of sets A and B.
- The union of A and B is that set whose elements are in either A or B or both.
- If A and B are sets, then difference of sets A and B is denoted by A - B.
- A - B in the set obtained by removing elements of A from B.

All

1, 2 and 3 only

2 and 3 only

1 and 4 only

⇒ In an amplitude modulated waveform, the amplitude of the sideband is

independent of the carrier amplitude

independent of the modulation index

carrier amplitude x modulation index

1/2 carrier amplitude x modulation index

⇒ In a radar, the return echo arrives after the allocated pulse interval. Then

the receiver may be over loaded

the target will appear closer than its actual position

the return echo may interfere with transmitter operation

none of the above

⇒ For a second order system, damping ratio ζ is such that 0 < ζ <. Then the roots of characteristic equation are

real but not equal

real and equal

complex conjugate

imaginary

⇒ A digital clock uses __________ chip

SSI

LSI

VLSI

MSI

⇒ In an n-type silicon crystal at room temperature, which of the following can have a concentration of 4 x 10

^{19}cm

^{-3}?

Silicon atoms

Holes

Dopant atoms

Valence electrons

⇒ The common emitter short circuit current gain β of a transistor

is a monotonically increasing function of the collector current I

_{c}

is a monotonically decreasing function of I

_{c}

increasing with I

_{c}, for low I

_{c}, reaches a maximum and then decreases with further increase in I

_{c}

is not a function of I

_{c}

⇒ The timing difference between a slow memory and fast processor can be resolved if

processor is capable of waiting

external buffer is used

either (a) or (b)

neither (a) nor (b)

⇒ A varactor diode is

reverse biased

forward biased

biased to breakdown

unbiased

⇒ The pole zero plot of the given figure is

non-minimum phase function

minimum phase function

all pass function

none of the above

⇒ Y = A + A B is the same as

Y = AB

Y = A + B

Y = A + B

Y = A + B

⇒ Without any addition circuitry, an 8:1 MUX can be used to obtain.

some but not all Boolean functions of 3 variables

all functions of 3 variables but none of 4 variables

all functions of 3 variables and some but not all of 4 variables

all functions of 4 variables

⇒

Match the following:

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

A. | Wein bridge oscillator | 1. | Low output impedance |

B. | Voltage shunt feedback amplifier | 2. | RF frequency range |

C. | Crystal oscillator | 3. | Audio frequency range |

D. | Current shunt feedback amplifier | 4. | High input impedance |

5. | High output impedance |

A-3, B-1, C-2, D-5

A-3, B-5, C-1, D-2

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

A-5, B-1, C-2, D-1

⇒ The direction of rotation of a CD is

clockwise

anticlockwise

clockwise or anticlockwise depending on frequency of data stored

mostly anticlockwise but some times clockwise

⇒ In 8085, to disable the whole interrupt system (except TRAP)

the DI instruction may be used

the DO instruction may be used

the INTERRUPT instruction may be used

the El instruction may be used

⇒ When a bit is 0 is a DDR, it makes the corresponding port pin an __________ On the other hand, a 1 bit programs a __________ Pin.

output, input

output, output

input, input

input, output

⇒ Typical values of voltage gain for CE, CB and CC amplifiers are

100, 100 and 1 respectively

100, 1 and 100 respectively

100, 1 and 1 respectively

1, 100 and 100 respectively

⇒ Identical telephone numbers in different parts of a country are distinguished by their

area codes

office codes

access digits

language codes

⇒ 1 dB is equal to __________ nepier

8.6

6.8

8

0

⇒ Which of the following components is essential for a voltage multiplier circuit?

Resistor

Inductor

Capacitor

Both (a) and (c)

⇒

**Assertion (A):** The closeness of G(*j*ω) locus to (- 1 + *j*0) point can be used as a measured of margin of stability.

**Reason (R):** When the G(*j*ω) locus comes close to encircling (- 1 + *j*0) point the system becomes oscillatory.

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 but R is wrong

R is correct but A is wrong

⇒ For formation of state equations, the inductors and current sources

should be in tree

should be in cotree

may be in tree or cotree

should be in both tree and cotree

⇒ A low-pass filter frequency responce H (

*j*ω) = A (ω)

*e*

^{jΦ}(ω) does not produce any phase distortion, if

A(ω) = Cω

^{2}, Φ (ω) =

*k*ω

^{3}

A(ω) = Cω

^{2}, Φ (ω) =

*k*ω

A(ω) = Cω

^{2}, Φ (ω) =

*k*ω

^{2}

A(ω) = C, Φ (ω) =

*k*ω

^{-1}

⇒ The residual resistivity of a binary alloy at 0 K is

sum of residual resistivities of component metals

difference of residual resistivities of component metals

product of residual resistivities of component metals

dependent on the concentration of minor component in the alloy

⇒ Two function

*g*

_{1}(

*t*) and

*g*

_{2}(

*t*) with correlation of 6 has average power of 4 and 5 respectively. The power of

*g*

_{1}(

*t*) +

*g*

_{2}(

*t*) is

9

21

3

15

⇒ The M.K.S. unit of magnetic field intensity is

ampere

ampere/metre

volt

volt/metre

⇒ In free space

phase velocity is greater than light velocity

phase velocity is equal to group velocity

phase velocity is equal to light velocity

Both (b) and (c)

⇒ In the circuit, shown in figure, V

_{0}= V

_{i}. The values of 1,

*m*,

*n*are: (

*x*represents don't care conditi

0, 1, 1

∞, x, x

x, ∞, x

0, x, ∞

⇒ The number of channels available in MF band (300 kHz - 3 MHz) for AM modulating signal of 20 kHz is

70

67

100

150

⇒ A waveguide behave as

high Pass filter

low Pass filter

band Pass filter

all Pass filter