Question is ⇒ FSK is a system involving, Options are ⇒ (A) pulse modulation, (B) frequency modulation, (C) amplitude modulation, (D) phase modulation, (E) , Leave your comments or Download question paper.

Question is ⇒ FSK is a system involving, Options are ⇒ (A) pulse modulation, (B) frequency modulation, (C) amplitude modulation, (D) phase modulation, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	FSK is a system involving
A.	pulse modulation [Wrong Answer]
B.	frequency modulation [Correct Answer]
C.	amplitude modulation [Wrong Answer]
D.	phase modulation [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : B 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 :

⇒ 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

⇒ Drain feedback bias is often used with
D MOSFETs
E MOSFETs
both D and E MOSFETs
neither D nor E MOSFETs

⇒ The current distribution of a half wave dipole is
uniform
sinusoidal
triangular
complex

⇒

Assertion (A): A binary number is a string of zeros and ones only

Reason (R): The base in a binary system is 2

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

⇒ Parallel adder is
sequential circuit
combinational circuit
either sequential or combinational circuit
none of the above

⇒ If the secondary winding of CT is opened when primary coil is carrying current
transformer will burn immediately
there will be weak flux density in core
there will be very high induced voltage in secondary
there will be high current in secondary

⇒ When a superheterodyne receiver is tuned to 455 kHz, its local oscillator provides a mixer with the input at 1010 kHz. The image frequency is
555 kHz
1010 kHz
1465 kHz
1920 kHz

⇒ The function f(t) = E[u(t - a) - u(t - b)] is
a pulse function originating at t = a
a step function orginating at t = 0
an exponential function originating at t = a
a pulse function originating at t = a and duration (b - a)

⇒ Unit step is a
energy signal
power signal
neither energy nor power signal
none

⇒ Gain stability in an oscillator can bs achieved by
providing negative feedback
providing positive feedback
using low Q circuits
controlling the gain

⇒ For a 2 port network, the O/P short circuit current was measured with a 1 volt source at the I/P then value of the current gives
h₁₂
y₁₂
h₂₁
y₂₁

⇒ The self inductances of two coils are 27 H and 3 H. If the winding or coils is such that 50% of flux of one links the other, the mutual inductance is
30 H
24 H
9 H
4.5 H

⇒ A semiconverter feeding an RLE load operates in
first quadrant only
first and second quadrants
first and fourth quadrants
first and third quadrants

⇒ In a half wave rectifier, the load current flows
only for the positive half cycle of the input signal
only for the negative half cycle of the input signal
for full cycle
for less than fourth cycle

⇒ The resonance frequency is
ω_r = a
ω_r = b
ω_r = k
ω_r = ba

⇒ Harmonic distortion analyser
measures amplitude of each harmonic
measures rms value of fundamental frequency component
measures rms value of all harmonics except fundamental frequency
displays rms value of each harmonic on screen of CRO

⇒ Rochelle salt is a ferroelectric material.
TRUE
FALSE

⇒ The PSD and the power of a signal g(t) are respectively S_g(ω) and P_g, the PSD and the power of signal a.g(t) are respectively
aS²_g (ω) and a²P_g
aS_g² (ω) and aP_g
aS_g (ω) and a²P_g
aS_g (ω) and aP_g

⇒ Symbol shown in figure represen
P-channel DEMOSFET
N-channel DEMOSFET
UJT with N-type base
UJT with P-type base

⇒ In figure the cut in voltage of diode is 0.7 V and its bulk resistance is 20 Ω. The peak value of circuit current of during positive and negative half cycles
10 mA and zero
9.12 mA and zero
9.3 mA and zero
zero and 9.12 mA

⇒ In a perfect conductor the incident and reflected wave combine to produce
a stronger incident wave
a stronger reflected wave
a standing wave which is not progressing
none of the above

⇒ When diodes are connected in series to increase voltage rating the peak inverse voltage per junction
should not exceed half the breakdown voltage
should not exceed the breakdown voltage
should not exceed one third the breakdown voltage
may be equal to or less than breakdown voltage

⇒ As the diameter of a wire is doubled, the resistance becomes
twice
one half
one fourth
four times

⇒ The maximum power handling capacity of a resistor depends on
total surface area
resistance value
thermal capacity of the resistor
resistivity of the material used in the resistor

⇒ Which converter is used in HVDC transmission?
3 pulse
6 pulse
12 pulse
24 pulse

⇒ What will be output for decimal input 82?
0.82 V
8 V
0.1 V
10 mV

⇒ The basic circuit configuration for TTL resembles that of a
AND gate
NAND gate
NOR gate
OR gate

⇒ In the expression b = 2.1 / 1.2 * 3.1 + 3 / 7.1 * 6 which operation would have the first priority in C?
2.1 / 1.2
1.2 * 3.1
2.1 / 1.2 * 3.1
3 / 7.1

⇒ An ideal current source has
infinite source resistance
zero source resistance
large value of source resistance
finite value of source resistance

⇒ Find R_{AB2 Ω
1.5 Ω
3 Ω
None of the above}