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Q1. | The coefficients F_{n} in the exponential form of Fourier series are |

A. | independent of frequency [Wrong Answer] |

B. | functions of frequency [Correct Answer] |

C. | even function of frequency [Wrong Answer] |

D. | odd functions of frequency [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 :**

⇒ Which of the following semiconductor has the highest melting point?

Germanium

Silicon

Gallium arsenide

Lead sulphide

⇒ A series RC circuit has R = 5 Ω and C = 10 μF. The current in the circuit is 5 sin 20000

*t*. The applied voltage is

252 sin (20000

*t*+ 45°)

252 sin (20000

*t*- 45°)

252 sin 20000

*t*

252 sin (20000

*t*- 90°)

⇒ In a semiconductor material. The hole concentration is found to be 2 x 2.5 x 10

^{15}

*cm*

^{-3}. If mobility of carriers is 0.13

*m*

^{2}/

*v-s*. Then find the current density if electric field intensity is 3.62 x 10

^{-19}

7.6237 x 10

^{-4}A/

*cm*

^{2}

7.6237 x 10

^{-5}A/

*cm*

^{2}

7.6237 x 10

^{-3}A/

*cm*

^{2}

none of these

⇒

**Assertion (A):** When a square periodic wave is applied to an RC circuit, the voltage across capacitor is observed to be a triangular periodic wave.

**Reason (R):** The RC circuit works as integrator and its time constant is much larger than time period of input wave.

Both A and R are true and R is correct explanation of A

Both A and R are true and R is not the correct explanation of A

A is true but R is false

A is false but R is true

⇒ Resistivity of semiconductors is around 100 Ω-m.

TRUE

FALSE

⇒ The transmitting antennas for lower frequencies (below 500 kHz) are generally

vertical grounded wire type

horizontal suspended wire type

parabolic reflector type

any of the above

⇒ The hexadecimal number BBC7 is equivalent to decimal number

49761

46791

47691

49761

⇒ It is difficult to write a program in a machine language.

TRUE

FALSE

⇒ A lag compensator is essentially a

low pass filter

high pass filter

band pass filter

either (a) or (b)

⇒ SWR for a transmission line is infinity when the load is

- Short circuit
- Complex impedance
- Open circuit
- Pure reactance

1, 3, 4 are correct

1 and 3 are correct

2, 3, 4 are correct

1, 2, 4 are correct

⇒ If B, H and M denote flux density, field intensity and magnetisation, B = μ

_{0}(H + M).

TRUE

FALSE

⇒ The current due to thermionic emission is given by Richardson Dushman equation.

TRUE

FALSE

⇒ Almost all high level languages have provision for logical operations.

TRUE

FALSE

⇒ If

*f*(

*t*) = 1, F(

*j*ω) =

2p

p

2pδ (p)

pδ (ω)

⇒ In figure V

_{BE}= 0.7 V. The base curren

above 97 μA

about 97 mA

about 75 μA

about 75 mA

⇒ A magic tee is to be used as CW duplexer. Then port 1, port 2, port 3 (E arm), port 4 (H arm) respectively should be connected to

matched load, antenna, receiver and CW transmitter

CW transmitter, antenna, receiver and matched load

CW transmitter, receiver, antenna and matched load

CW transmitter, matched load, receiver and antenna

⇒ The circuit in figure, is to be scaled to an impedance level of 5kΩ and resonant frequency of 5 x 10

^{6}rad/sec. The possible combination of R, L,

2.5Ω, 0.2 mH, 200 pF

5 kΩ, 0.2 mH, 200 pF

5 kΩ, 0.2 mH, 200 μF

5 kΩ, 0.1 mH, 0.4 μF

⇒ The realization of the term Ks yields

a resistance of value K ohms

a capacitances of value K farads

an inductance of value k farads

either (b) or (c)

⇒ 'Burst refresh' in DRAM is also called

Concentrated refresh

Distributed refresh

Hidden refresh

None of the above

⇒ For the design of a sequential circuit having 9 states, minimum number of memory elements required is

3

4

5

9

⇒ In the circuit of figure, the power consumed in resistance R is measured when one source is acting at one time. These values are 18 W, 50 W and 98 W. When all source act together the maximum and minimum power ca

98 W and 18 W

166 W and 18 W

450 W and 2 W

166 W and 2 W

⇒ A sinusoidal voltage of 2 kV peak value is amplitude modulated to give 20% modulation. The peak value of each side band term is

400 V

200 V

100 V

800 V

⇒ Two CE stages are coupled through a capacitor. To calculate the quiescent base current of the two transistors, the capacitor is treated as

open circuit

short circuit

neither (a) nor (b)

either (a) or (b)

⇒ The given figure shows a K-map for a Boolean function. The number of essential prime implicant

4

5

6

8

⇒ For a full wave bridge rectifier supplied with 50 Hz a.c., the lowest ripple frequency will be

50 Hz

100 Hz

200 Hz

400 Hz

⇒ Two capacitors each of capacitance C and breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination is

0.5 C and 2 V

0.5 C and 0.5 V

C and V

2 C and 2 V

⇒ Radiation resistance of an antenna is 54 Ω and loss resistance is 6 Ω. If antenna has power gain of 10, then directivity is:

9

11.11

data not sufficient

10

⇒ A(A + B) =

A

A B

AB

AB

⇒ System satellites orbit the Earth once in

24 hours

12 hours

1 hours

6 hours

⇒ A DC voltage source is connected across a series R - L - C circuit. Under steady-state conditions, the applied DC voltage drops entirely across the

R only

C only

L only

R and L combination