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Q1. | It f(t) is an odd function, the coefficients F in the exponential form of Fourier series_{n} |

A. | are real [Wrong Answer] |

B. | are imaginary [Correct Answer] |

C. | are complex [Wrong Answer] |

D. | may be real or imaginary [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ In figure, V

_{020 V10 V5 V0}

⇒ AECF1

_{16}+ 15ACD

_{16}= __________ .

C47BB

_{16}

C47BE

_{16}

A234F

_{16}

A1111

_{16}

⇒ In case of antenna the ratio of the power radiated in the desired direction to the power radiated in the opposite direction is known as

transmission efficiency

front to back ratio

loss coefficient

none of the above

⇒ A colour monitor usign 16 bits at a resolution of 600 x 400 pixels needs a memory of

240000 B

9600 B

6400 B

480000 B

⇒

Match the following:

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

A. | Resistance | 1. | M^{-1}L^{-2}T^{2}I^{2} |

B. | Inductance | 2. | ML^{2}T^{-2}I^{-2} |

C. | Capacitance | 3. | M^{-1}L^{-2}T^{4}I^{2} |

D. | Reluctance | 4. | ML^{2}T^{-3}I^{-2} |

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

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

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

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

⇒ A network has two sources of different frequencies. The only method of analysis which can be used to find current and voltages of different branches is the use of

Kirchoff's laws

Superposition theorem

Thevenin's theorem

Tellegen's theorem

⇒ In a monolithic IC, resistors are formed from

ceramic material

manganin wire

P-type semiconductor

aluminium ribbon

⇒ For the two port of figure,

*z*

_{1126/7 Ω10/3 Ω6 Ω2 Ω}

⇒ A thermocouple instrument can be used over a very wide frequency range.

TRUE

FALSE

⇒ In figure, D

_{2}turns on

*v*

_{i}is more positive than V

_{1}

*v*

_{i}is less positive than V

_{1}

*v*

_{i}is more negative than V

_{2}

*v*

_{i}is less negative than V

_{2}

⇒ The open collector gates in the given figure are tied together. The output

A + B + C + D

A + B + C + D

(A + B) (C + D)

AB + CD

⇒ Which modes of circular wave guides have circular symmetry?

TE

_{11}

TE

_{11}and TE

_{21}

TE

_{01}

TE

_{01}and TM

_{01}

⇒ In a second order system ω

*= 10 rad/sec and ζ = 0.1, then ω*

_{n}_{d}=

9.1 rad/sec

9.95 rad/sec

9 rad/sec

1 rad/sec

⇒ Which SNR denotes excellent picture quality in TV?

50 dB

30 dB

15 dB

5 dB

⇒ In integral cycle control of ac regulators, the period of integral cycle control,

*i*.

*e*., (

*m*+

*n*) T should be

less than mechanical or thermal time constant of the system

more than the mechanical or thermal time constant of the system

more or less than the mechanical or thermal time constant

very high

⇒ A rectifier voltmeter using bridge rectifier and PMMC meter is calibrated to read rms value of sine wave. A triangular wave is applied to it and it reads 6.82 V. The rms value of triangular wave is

about 6.82 V

about 7.1 V

about 6.5 V

about 10 V

⇒ Consider the following C program int

All

1, 2, 3 only

2, 3, 4 only

1, 2, 4 only

⇒ In sound recording the degree of pre-emphasis is about 6 dB/ octave.

TRUE

FALSE

⇒ A periodic voltage has following values for equal time intervals changing suddenly from one value to next, 0, 5, 10, 20, 50, 60, 50, 20, 10, 5, 0, -5, -10 etc. then rms value of the waveform is

31 volt

32 volt

insufficient data

none

⇒ If figure, I = 2A if R = 20 Ω. When R = 10 Ω current I

0.0416666666666667

0.0833333333333333

2.5 A

0.125

⇒ A noise can be represented as superposition of spectral components. When this noise is passed through a narrow band filter, the output of filter should look like

sinusoidal

rectangular

triangular

none of the above

⇒ The transfer function of a controller is given as K

_{p}+ K

_{d}.

*s*where K

_{p}and K

_{d}are constants. What type of controller is this?

Proportional

Proportional plus integral

Proportional plus derivative

Integral plus derivative

⇒ Which of the following

*h*parameters is an admittance?

*h*

_{ie}

*h*

_{re}

*h*

_{fe}

*h*

_{oe}

⇒ A

_{16}X 2

_{16}__________ .

16

_{16}

15

_{16}

14

_{16}

13

_{16}

⇒ Pulse stuffing is used in

synchronous TDM

asynchronous TDM

Any TDM

All

⇒ For a BJT, avalanche multiplication factor depends on

V

_{CE}

V

_{CB}

V

_{BE}

none

⇒ An excitation is applied to a system at

*t*= T and the response in zero for -∞ <

*t*<

*T*. This system is

non casual

stable

casual

unstable

⇒ In Class C operation the collector current looks like

full sine wave

half sine wave

narrow pulses

nearly half sine wave

⇒ An XOR gate with 6 variables is as follows A ⊕ B ⊕ C ⊕ D ⊕ E ⊕ F. The number of minterms in the Boolean expression is

6

12

64

32

⇒ An FM signal with a deviation is passes through the mixer, and has its frequency reduced five fold. The deviation in the output of the mixer is

Δ

5Δ

Δ/5

indeterminant