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Q1. | The trignometric Fourier series of an even function of time does not have |

A. | dc term [Wrong Answer] |

B. | cosine term [Wrong Answer] |

C. | sine term [Correct Answer] |

D. | odd harmonic terms [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 |

**Also Read Similar Questions Below :**

⇒

**Assertion (A):** 2's complement arithmetic is preferred in digital computers

**Reason (R):** The hardware required to obtain 2's complement is simple.

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 true, R is false

A is false, R is true

⇒ The waveform shown in the given Figure can be written

*v*(

*t*) =

*u*(

*t*- 1) +

*u*(

*t*- 2) +

*u*(

*t*- 3) +

*u*(

*t*-4)

*v*(

*t*) =

*u*(

*t*- 1) +

*u*(

*t*- 2) +

*u*(

*t*- 3) +

*u*(

*t*-4) -

*u*(

*t*- 5)

*v*(

*t*) =

*u*(

*t*- 1) +

*u*(

*t*- 2) +

*u*(

*t*- 3) +

*u*(

*t*-4) - 4

*u*(

*t*- 5)

*v*(

*t*) =

*u*(

*t*- 1) +

*u*(

*t*- 2) +

*u*(

*t*- 3) +

*u*(

*t*-4) + 4

*u*(

*t*- 5)

⇒ Consider the following statements: The radar pulse must be flat topped to

- allow accurate range measurement
- allow good minimum range
- prevent frequency changes in magnetron
- make the returned echoes easier to distinguish from noise.

1, 2, 3, 4

1, 2, 3

1, 2

1, 3, 4

⇒ For F

_{1}layer the maximum ionic density is 2.3 x 10

^{4}electrons per cc. The critical frequency for this layer will be

1.36 MHz

13.6 MHz

136 MHz

1360 MHz

⇒ The maximum permissible distance between two samples of a 2 kHz signal is

1000 μ sec

500 μ sec

250 μ sec

2000 sec

⇒ In a waveguide the dielectric region is generally

air

magnetic material

brass

mica

⇒ In a rectangular waveguide if operating frequency is greater than cut off frequency then propagation constant is

purely real

purely imaginary

equal to unit

a complex number

⇒ For any test point

*s*on the real axis, the sum of angular contributions of the complex conjugate poles is

90°

180°

270°

360°

⇒ The maximum forward current in case of signal diode is in the range of

1 A to 10 A

0.1 A to 1 A

few milli amperes

few nano amperes

⇒ The type of feedback in the following circuit diag

Voltage shunt

Current-shunt

Voltage series

Current series

⇒ A resistive microwave load with Z

_{L}= 150 Ω is connected to 50 Ω coaxial line. SWR is

more than 3

less than 3

equal to 3

either (a) or (c)

⇒ Consider the following symbols

- Letters A to Z and a to z
- Digits 0 to 9
- Logical operators and, or, not
- Parenthesis ( )

1 and 2 only

1, 2 and 3 only

1, 2 and 4 only

All

⇒ The 8086 arithmetic instruction work on

- signed and unsigned numbers
- ASCII data
- unpacked BCD data

1 and 2

1 and 3

2 and 3

1, 2 and 3

⇒

**Assertion (A):** Thevenin's theorem helps us to find current in a branch of a network for different values of impedances of that branch.

**Reason (R):** Thevenin's equivalent circuit replaces a network by a voltage source in series with impedance.

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

⇒ Three resistance of 15 Ω each are connected in delta. The resistance of equivalent star will have a value of

15 Ω

5 Ω

5/3 Ω

45 Ω

⇒ In a shield helix

the spacing between adjacent turns is very large

the spacing between adjacent turns approaches zero

the spacing between adjacent turns approaches zero and wire thickness approaches zero

the spacing between adjacent turns is very large wire thickness approaches zero

⇒ Neper is

larger than a decibel

smaller than decibel

equal to 1 decibel

none of the above

⇒ An RLC series circuit has Q = 100 and ω

_{0}= 20 rad/sec. The bandwidth is

0.2 rad/sec

2 rad/sec

20 rad/sec

2000 rad/sec

⇒ The feedback control system shown in the given figure repres

Type 0 system

Type 1 system

Type 2 system

Type 3 system

⇒ A capacitor can be represented by a capacitance and resistance in parallel. For a good capacitor, this parallel resistance should be

negligible

low

high

very high

⇒ A counter has N flip flops. The total number of states are

N

2 N

2

^{N}

4 N

⇒ A 3 bit up-down counter can count from

000 to 111

111 to 000

000 to 111 and also from 111 to 000

none of the above

⇒ If the midband gain of an amplifier is 40 dB, the gain at half power frequency is

37 dB

30 dB

20 dB

13 dB

⇒ 0.1011

_{2}= __________ .

0.6875

_{10}

0.6800

_{10}

0.0100

_{10}

0.5000

_{10}

⇒ Dielectric loss due to polarisation occurs in

bipolar dielectrics

non-metallic dielectrics

liquid dielectrics

all of the above

⇒ The logical expression Y = A + AB is equivalent to

Y = AB

Y = AB

Y = A + B

Y = A + B

⇒ In radio receiver, the maximum contribution to noise is from

mixer stage

power supply

power amplifier

equally from above three

⇒ Which of the following is an indirect way of generating FM?

Armstrong modulator

Varactor diode modulator

Reactance FET modulator

Reactance bipolar transistor

⇒ If two networks are cascaded then

[

*y*] = [

*y*

_{a}] . [

*y*

_{b}]

[Z] = [Z

_{a}] . [Z

_{b}]

[

*a*

_{a}] = [

*b*

_{b}]

[

*a*

_{a}] + [

*b*

_{b}]

⇒ The contents of stack location 2109 H after the call operation wil

1111

1010101

100000

100010