Users Also Read

MCQ's Search Engine

Electrical Engineering

Mechanical Engineering

Civil Engineering

Automobile Engineering

Chemical Engineering

Computer Engineering

Electronics Engineering

Medical Science Engg

Q1. | V_{L} = 100 cos (10t + 30&d |

A. | 116.57 sin (10t - 29°) V [Correct Answer] |

B. | 116.57 sin (10t + 29°) V [Wrong Answer] |

C. | 117.00 sin (10t - 29°) V [Wrong Answer] |

D. | 117.00 sin (10t + 29°) V [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss 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 PCM signal shown below uses amplitude level of +1 volt and -1 volt to represent binary symbol 0 and 1 respectively. Each code word consists of 4 bits. The sampled version of analog signal from which this PCM signal is derived

EB596

CD231

DA495

25B6A

⇒ In the given figure shows a 10dB directional coupler. If power input at port 1 is 100 mW, power output at port

10 mW

15 mW

20 mW

25 mW

⇒ Baudot code is a six bit code.

TRUE

FALSE

⇒ For the polynomial

*P*(

*s*) =

*s*

^{5}+

*s*

^{4}+ 2

*s*

^{3}+ 2

*s*

^{2}+ 3

*s*+ 15 The number of roots which lie in the right half of the

*s*plane is :

4

2

3

1

⇒ The maximum signal propagation time of a geosynchronous satellite transmission is about __________ millisecond.

540

270

135

1080

⇒ Threshold of perception occurs at a current of about 1 mA.

TRUE

FALSE

⇒ 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 power gain is

125

250

1125

3125

⇒ The conduction band is

same as forbidden energy gap

generally located on the top of the crystal

generally located on the bottom of the crystal

a range of energies corresponding to the energies of the free electrons

⇒ For the circuit of the following figure, with an ideal op-amp, the maximum phase shift of the output with reference to the input

0°

90°

-90°

± 180°

⇒ If wave of critical frequency 30 MHz is departing at an angle of 60°, then the MUF is given to be

10 MHz

15 MHz

30 MHz

60 MHz

⇒ A coil resonates at 1 MHz with a resonating capacitance of 72 pF. At 500 pF, resonance is obtained with a resonating capacitor of 360 pF. The self capacitance of coil is

12 pF

24 pF

30 pF

72 pF

⇒ In figure, I

_{D}= 4 mA. Then V

_{S20 V16 V6 V0.6 V}

⇒ In the transformer shown in figure, the inductance measured across terminal 1 and 2 was 4 H with terminals 3 and 4 open. It was 3H when terminals 3 and 4 are short circuited. The coefficient of couplin

1

0.707

0.5

indeterminate due to insufficient data

⇒ It two voltages are

*v*

_{1}= 100 sin (ω

*t*- 30°) and

*v*

_{2}= cos ω

*t*then

*v*

_{1}is leading

*v*

_{2}by 30°

*v*

_{2}is leading

*v*

_{1}by 30°

*v*

_{2}is leading

*v*

_{1}by 60°

*v*

_{1}is leading

*v*

_{2}by 60°

⇒ In figure the current distribution is represented

curve A

curve B

curve C

curve D

⇒ In order to receive a vertical polarized wave, the conductor of the dipole should be mounted

horizontally

vertically

at an angle of 45°

at an angle of 90°

⇒ A directional coupler is used

to transmit microwave signals

to generate microwave signals

to measure amplitude and phase of a travelling wave

both (a) and (b)

⇒ As compared to TTL, ECL has

lower power dissipation

lower propagation delay

higher propagation delay

higher noise margin

⇒

**Assertion (A):** In TE mode for rectangular waveguide.

**Reason (R):** In TM mode for rectangular waveguide.

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

A is wrong but R is correct

⇒ At night the ionosphere can be considered to be consisting of

D, E, F

_{1}and F

_{2}layers

D, E, F

_{1}layers

D, E, F

_{2}layers

E and F

_{2}layers

⇒ The inconsistency of Ampere's law can be removed by adding __________ to it.

displacement current density alone.

conduction current density alone.

displacement and conduction current densities.

none of these

⇒ The use of thermocouple meters for ac measurement leads to a scale which is

linear

square law

logarithmic

exponential

⇒ In a directional coupler

isolation (dB) equals coupling plus directivity

coupling (dB) equals isolation plus directivity

directivity (dB) equals isolation plus coupling

isolation (dB) equals (coupling) (directivity)

⇒ Heat sink results in

slower dissipation of heat to atmosphere

faster dissipation of heat to atmosphere

lower ambient temperature

lower transistor power

⇒ A network has two branches in parallel. One branch contains impedance Z

_{1}and the other branch has impedance Z

_{2}. If it is fed from an ac voltage V of frequency f, the current through Z

_{1}depends, on

V, Z

_{1}, Z

_{2}

V, Z

_{1}

Z

_{1}, Z

_{2}

V, Z

_{1}, f

⇒ A 200 Hz sound wave is to be transmitted by a 1000 kHz radio wave using frequency modulation. The instantaneous frequency variation will be

100 times a second

200 times a second

400 times a second

1000 times a second

⇒ JFET is also known as

linear device

square law device

inverse law device

logarithmic law device

⇒ Out of the three transforms viz. Z-transform, Laplace transform and Fourier transform

all three are used in continuous time domain

all three are used in both continuous time domain and discrete time domain

Z transform is used in continuous time domain while Laplace and Fourier transforms are used in discrete time domain

Z transform is used is discrete time domain while Laplace and Fourier transforms are used in continuous time domain

⇒ In a series RLC circuit the phase angle θ of impedance Z ∠θ is positive. The circuit will behave as

resistive circuit

RC circuit

RL circuit

either RL or RC circuit

⇒ The power requirements of a DRAM in active and stand by modes is about

350 mW and 5 mW respectively

350 mW each

5 mW each

350 mW and 100 mW respectively