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Q1. | The modulation index of an FM is changed from 0 to 1. How does the transmitted power change? |

A. | Gets halved [Wrong Answer] |

B. | Gets doubled [Wrong Answer] |

C. | Gets increased by 50 percent [Correct Answer] |

D. | Remains unchanged [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 |

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⇒ The coefficients F

_{n}in the exponential form of Fourier series are

independent of frequency

functions of frequency

even function of frequency

odd functions of frequency

⇒ In a linear circuit, the superposition principle can be applied to calculate the

voltage and power

voltage and current

current and power

voltage, current and power

⇒ A 20 m antenna gives a certain uplink gain at frequencies of 4/6 GHz. For getting same gain in the 20/30 GHz band, antenna size required is metre.

100

4

1

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⇒ For a P-N junction diode, the current in reverse bias may be

few amperes

between 0.5 A and 1 A

few milliamperes

few micro or nanoamperes

⇒ Symbol shown in figure represen

P-channel enhancement MOSFET

N-channel DEMOSFET

UJT with P-type base

UJT with N-type base

⇒ A balun provides an impedance transformation of

0.667361111111111

0.334027777777778

0.167361111111111

0.0840277777777778

⇒ The real part of complex dielectric constant and tanδ for a dielectric are 2.1 and 5 x 10

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⇒ The sensitivity of human eyes is maximum at

white portion of spectrum

green portion of spectrum

red portion of spectrum

violet portion of spectrum

⇒ For the transmission of normal speech, the PCM channel needs a bandwidth of __________ kHz.

2

4

16

32

⇒ Thermal run away of a transistor occurs when

heat dissipation from transistor is excessive

transistor joints melt due to high temperature

there is excessive leakage current due to temperature rise

none of the above

⇒ The minimum gate source voltage that creates the

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cut off voltage

on voltage

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zener voltage

⇒ The minor M

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FALSE

⇒ If word length is 16 bits the decimal equivalent of largest number which can be stored is

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1, 2

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⇒ Three point tracking is achieved with

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padder capacitor

double spotting

variable selectivity

⇒ The characteristic equation of flip-flop gives the next state Q

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Q

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_{N}+ KQ

_{N}

Q

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⇒ As temperature increases, the temperature coefficient of a metal

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⇒ A TRIAC is equivalent to

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less than 1

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⇒ Ferrites have

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low resistivity

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- The mutual inductance should not vary with temperature.
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2, 3, 4

1, 2, 3

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0