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Q1. | In a RL circuit, the angle, θ by which the current lags the voltage is |

A. | 0 > θ > - 90° [Wrong Answer] |

B. | 90° [Wrong Answer] |

C. | 0° [Wrong Answer] |

D. | 0 < θ < 90° [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 :**

⇒ A rectangular waveguide having TE

_{10}mode as dominant mode is having a cut off frequency of 18 GHz for the TE

_{30}mode. The inner broad wall dimension of the rectangular waveguide is

5/3 cm

5 cm

5/2 cm

10 cm

⇒ As compared to 17.34° antenna, the total increase in the signal relayed by 4.5° antenna of INTELSAT-IV is

14.85

220

78

3.85

⇒ (100101)

_{2}is

(37)

_{10}

(69)

_{10}

(41)

_{10}

(5)

_{10}

⇒ Equation

*x*

_{l0}= 11001001

_{2}when solved for

*x*gives the value of

*x*as

8

111

152

201

⇒ In the words Kb or Mb used describing memory capacity, the letter

*b*denotes

bits

bytes

bits or bytes depending on type of memory

bubbles

⇒ Consider the following statements

- In a pulsed radar, the transmitted pulses are of high frequency
- In a pulsed radar, the transmitted pulses are of high power
- In a pulsed radar, the transmitted pulses are of brief duration
- In a pulsed radar, the transmitted pulses are of square wave shape.

1 only

1, 2 and 3 only

1, 2, 3, 4

1 and 3 only

⇒ A steel bar needs 1200 AT to magnetise it. The voltage that must be applied to the magnetising coil of 100 turns and 10 Ω resistance is __________ volt.

120

12

1200

10

⇒ Consider the following expressions which indicate the step or impulse response of an initially relaxed system

- [5 - 4
*e*^{-2t}]*u*(*t*) - [
*e*^{-2t}+ 5]*u*(*t*) *d*(*t*) + 8*e*^{-2t}*u*(*t*)*d*(*t*) + 4*e*^{-2t}*u*(*t*)

1 and 3

1 and 4

2 and 4

2 and 3

⇒ Which of the following plot can be used to show the input volt-ampere characteristics of a common-emitter configuration?

V

_{BE}versus

*i*

_{B}for constant values of V

_{CE}

V

_{CE}versus

*i*

_{C}for constant values of I

_{B}

V

_{CE}versus

*i*

_{C}for constant values of I

_{E}

None of the above

⇒ State transition table and state transition diagram form part of design steps for

combinational circuits

sequential circuits

delay circuits

all of the above

⇒ If

*a*and

*b*are the width and height of rectangular wave-guide the cut off wavelength λ

_{c}for TE

_{20}mode is equal to

*a*

*a*+

*b*

*a*-

*b*

*a*

^{2}+

*b*

^{2}

⇒ Consider the following stateme

1, 2 and 3

1 and 2 only

2, 3 and 4

2, 3 and 4

⇒ Mark the false statement:

since wave-shape of a digital signal is unimportant, linear amplifiers are not required

the precise amplitude of a digital signal is also unimportant provided two voltage levels (0 and 1) are quite different

the leading and trailing edges of a digital signal need not be sharp

actual digital waves have rise and fall times of the order of a few nano seconds

⇒ When the mains supply is switched off the contents of primary computer memory are lost.

TRUE

FALSE

⇒ ECL can be used to high frequencies in the order of

500 kHz

1 MHz

100 MHz

500 MHz

⇒ Which of the following is the fastest switching device?

JFET

BJT

MOSFET

Triode

⇒ Four inputs A, B, C, D are fed to a NOR gate. The output of NOR gate is fed to an inverter. The output of inverter is

A + B + C + D

A + B + C + D

ABCD

ABCD

⇒ Two coil have their axis perpendicular to each other. The coefficient of coupling

*k*is

1

0.5

more than 0 but less than 1

0

⇒ Which of the following is not a valid real constant in C?

426

321

-621.231

201.2314

⇒ Two voltages 50 V each have a phase difference of 45°. The rms value of resultant sum of the two voltages is

70.7 V

80.4 V

92.4 V

100 V

⇒

Match the following:

List I (Circuit) | List II (Characteristics) | ||
---|---|---|---|

A. | Darlington pair | 1. | uses pnp and npn transistors used as power amplifier |

B. | CB amplifier | 2. | Voltage gain nearly 1 and high input impedance |

C. | Cascade amplifier | 3. | low input impedance used for high frequency isolation |

A-1, B-2, C-3

A-2, B-3, C-1

A-2, B-1, C-3

A-3, B-1, C-2

⇒

*V*

_{L}= 100 cos (10

*t*+ 30&d

116.57 sin (10

*t*- 29°) V

116.57 sin (10

*t*+ 29°) V

117.00 sin (10

*t*- 29°) V

117.00 sin (10

*t*+ 29°) V

⇒ The write cycle time of memory is 200 nsec. The maximum rate of data which can be stored is

200 words/sec

5 x 10

^{3}words/sec

5 x 10

^{6}word/sec

5 x 10

^{9}words/sec

⇒ For 8 bit representation the minimum positive and minimum negative numbers are

2

^{-128}each

2

^{-28}and 2

^{-127}

2

^{-127}and 2

^{-128}

2

^{-127}each

⇒ In a two phase servomotor the voltages applied to the two stator windings

are equal in magnitude and are in phase

are unequal in magnitude but are in phase

are equal in magnitude but have a phase difference of 90°

are unequal in magnitude and have a phase difference of 90°

⇒ His rather casual remarks on politics __________ his lack of seriousness about the subject.

masked

belied

cherish

conserve

⇒ In figure, the curre

is 2 A from A to B

is 2 A from B to A

depends on the value of R

none of the above

⇒ In a lag network the input frequency is 100

*f*where

_{c}*f*is critical frequency. The voltage gain is

_{c}0 dB

-20 dB

-40 dB

-60 dB

⇒ Which dc servomotor has minimum inertia?

Slotted armature construction

Surface wound armature

Surface wound with stationary rotor

Either (a) or (b)

⇒ Which of the following statement is correct?

FET and junction transistor both are unipolar

FET and junction transistor both are bipolar

The FET is bipolar, while junction transistor are unipolar

The FET is unipolar, while junction transistor are bipolar