Question is ⇒ Choose the function f(t), - ∞ < t < + ∞, for which a Fourier series cannot be defined, Options are ⇒ (A) 3 sin (25t), (B) 4 cos (20t + 3) + 2 sin (10t), (C) exp - | t | sin 25 t, (D) 1, (E) , Leave your comments or Download question paper.

Question is ⇒ Choose the function f(t), - ∞ < t < + ∞, for which a Fourier series cannot be defined, Options are ⇒ (A) 3 sin (25t), (B) 4 cos (20t + 3) + 2 sin (10t), (C) exp - | t | sin 25 t, (D) 1, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Choose the function f(t), - ∞ < t < + ∞, for which a Fourier series cannot be defined
A.	3 sin (25t) [Wrong Answer]
B.	4 cos (20t + 3) + 2 sin (10t) [Wrong Answer]
C.	exp - \| t \| sin 25 t [Correct Answer]
D.	1 [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ 268₁₀ = __________ .
10A₁₆
10B₁₆
10C₁₆
10D₁₆

⇒ Which of the following is non-saturating?
TTL
CMOS
ECL
Both (a) and (b)

⇒ The number of logic devices required in a Mod-16 synchronous counter are
4
5
6
7

⇒ For a = - 1, find the value of V_{2∞
0
V₁
none of the above}

⇒ In figure, thyristor Th is in off state. When thyristor is turned on, the peak thyristor current can
0.208333333333333
0.416666666666667
15 A
20 A

⇒ Consider the following statements relating to synchros

Rotor of control transformer is either disc shaped or umbrella shaped
Rotor of transmitter has low magnetic reluctance
Transmitter and control transformer pair act as error detector

Out of above the correct statements are
1, 2, 3
1 and 2
2 and 3
1 and 3

⇒ Consider the following statemen
1 only
2 only
1 and 2
2 and 3

⇒ Antenna beamwidth is
measure of directivity
measure of angle
measure of radiation pattern
measure of power pattern

⇒ The symbol shown in figure represen
P-channel MOSFET
UJT with N-type base
N-channel DEMOSFET with internal zener protection
P-channel DEMOSFET with internal zener protection

⇒ Which dc servomotor has minimum inertia?
Slotted armature construction
Surface wound armature
Surface wound with stationary rotor
Either (a) or (b)

⇒ Double integration of a unit step function would lead to
an impulse
a parabola
a ramp
a doublet

⇒ Consider the following statements regarding an antenna:

It is a transducer
Its performance is essentially frequency sensitive
It is a reciprocal device
With increase in its effective aperture area, width of the radiated beam increases.

Which of the above statements are correct?
1, 2 and 3
1, 2 and 4
2 and 3 only
1 and 4 only

⇒ A silicon controlled switch has :
2 leads
3 leads
4 leads
5 leads

⇒ Why does a FM radio station perform better than and AM station radiating the same actual power?
FM is immune to noise
AM has only two sidebands while FM has more
FM uses larger bandwidth for large modulation depth.
Capture effects appears in FM.

⇒ In the circuit of the given figure,
0
1
X
X

⇒ Which of the following real expressions is correct in Pascal?
- Z + P * X
(X + Y) (A + B)
Z ** M
Z P * M

⇒ The purpose of providing groundings rings with MOSFET is to
avoid any stray voltage at the gate that may destroy SiO₂ layer
protect against any descaling
ground all eddy currents
protect against any physical injury

⇒ Consider the network: Impedance of this network as a function of the complex frequency is consists of a certain number of zeros and poles. What is the location of po
-2
-2, ∞
2
2, ∞

⇒ Which one of the following is transferred locking electron device C antenna?
BARITT diode
IMPATT diode
Gunn diode
Step recovery diode

⇒ When cells having different emfs are connected in parallel, a circulating current flows.
TRUE
FALSE

⇒ A TV picture is to be transmitted over a channel of 6 MHz bandwidth at a 35 dB S/N ratio. The capacity of the channel is
50 Mbps
100 Mbps
36 Mbps
72 Mbps

⇒ Which is most important subsystem for recovering and reconstructing signal in a TDM system?
Envelope detector followed by a low pass filter
Synchronization ckt for proper timing
Bandpass filter to segregate channels
Coherent detector to ensure frequency and phase connection

⇒ A system is stable if ROC
include the unit circle
exclude the unit circle
lies on Circle
entire plane

⇒ For frequencies upto 1650 kHz __________ antenna is used
yagi
grounded
turnstile
marconi

⇒ A VF display operates on the principle of a vacuum diode.
TRUE
FALSE

⇒ Which one of the following is the correct statement of the system characterized by the equation y(t) = ax(t) + b?
linear for any value of b
linear if b > 0
linear if b < 0
non-linear

⇒

Assertion (A): The TTL output acts as a current sink in low state

Reason (R): The TTL input current is largest in low state.

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

⇒ A message signal x(t) is amplitude modulated with carrier c(t2ω
3ω
1ω
0.5ω

⇒ A combination circuit is one in which the output depends on
input combination at that time
input combination and previous output
input combination and previous input
present output and previous output

⇒ A dc circuit breaker must use
natural commutation
forced commutation
both natural and forced commutation
either natural or forced commutation

Users Also Read
Previous Papers

Aptitude

Reasoning

Gen.Knowledge

Speak English

English / Verbal

Online / Mock Test

Vedic Math