Question is ⇒ When ωm is the modulation frequency in frequency modulation, the modulation index is proportional to, Options are ⇒ (A) ωm, (B) ω2m, (C) 1/ωm, (D) 1/ω2m, (E) , Leave your comments or Download question paper.

Question is ⇒ When ωm is the modulation frequency in frequency modulation, the modulation index is proportional to, Options are ⇒ (A) ωm, (B) ω2m, (C) 1/ωm, (D) 1/ω2m, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	When ω_m is the modulation frequency in frequency modulation, the modulation index is proportional to
A.	ω_m [Wrong Answer]
B.	ω²_m [Wrong Answer]
C.	1/ω_m [Correct Answer]
D.	1/ω²_m [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 :

⇒ A moving coil meter has a resistance of 50 ohms and a full scale deflection current of 20 mA. To convert it into a voltmeter of 0-100 V range, the series resistance should be
5000 Ω
5050 Ω
4950 Ω
505 Ω

⇒ The relation AD - BC = 1 where A, B, C, D are transmission parameters of a network is valid for
every network
passive but not reciprocal network
passive and reciprocal network
both active and passive networks

⇒ What will be BCD number when the output is 0.37 V?
110111
10110111
11001000
1001000

⇒ In figure the number of tree branches and links respectively
3 and 2
1 and 3
4 and 1
1 and 4

⇒ The main disadvantage of the two-hole directional coupler is
poor directivity
narrow bandwidth
high standing wave ratio
low directional coupling

⇒ The given figure shows a K-map for a Boolean function. The number of essential prime implicant
4
5
6
8

⇒ Entropy gives
measure of Uncertainty
rate of Information
average information
probability of Information

⇒ Consider the following galvanometers

D'Arsonval
Ballistic
Vibration

Which of these are permanent magnet moving coil instruments?
1 and 2 only
1, 2 and 3
2 and 3 only
1 and 3 only

⇒ In a series regulated power supply circuit the voltage gain of pass transistor satisfies the condition
A_v → ∞
1 << A_v → ∞
A_v ≈ 1
A_v << 1

⇒ In a digital system there are three inputs ABC. Output should be high when atleast two inputs are high. Then output =
AB + BC + AC
ABC + ABC + A BC + ABC
AB + BC + AC
AB + BC + AC

⇒ An oscillator requires an amplifier
with negative feedback
with positive feedback
with either positive or negative feedback
none of the above

⇒ Dynamic memory cells are constructed using
FETs
MOSFETs
Transistors
Flip flops

⇒ Norton's equivalent circuit
is same as Thevenin's circuit
has no relation with Thevenin's circuit
is dual of Thevenin's circuit
is reciprocal of Thevenin's circuit

⇒ The dual of A + [B + (AC)] + D is
A + [(B (A + C))] + D
A [B + AC] D
A + [B (A + C)] D
A [B (A + C)] D

⇒ The ratio of diffusion constant for hole D_P to the mobility for holes is proportional to
T²
T
1/T
T³

⇒

Match the following:

	List I (Binary)		List II (Hexadecimal)
A.	10101010	1.	FF
B.	11111111	2.	88
C.	10001000	3.	92
D.	10010010	4.	AA

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

⇒ A 4 bit binary adder has 4 full adders.
TRUE
FALSE

⇒ What is the propagation constant for air filled wave guide with dimensions a = 1.59" and b = 0.795" at 4.95 GHz?
0.6698
0.7698
0.503
0.6598

⇒ The number of protons in a copper atom are
2
9
11
29

⇒ The turn on time of an SCR is 5 micro second. Its trigger pulse should have
short rise time with pulse width = 2.5 μs
long rise time with pulse width = 3 μs
short rise time with pulse width = 4 μs
long rise time with pulse width = 4 μs

⇒ The signal x(t) = A cos (ω₀t + φ) is
energy signal
power signal
energy Power
none

⇒ The problem of current lagging is associated with
DCTL gates
DTL gates
ECL gates
CMOS gates

⇒ The disadvantage of transformer coupling in amplifier is
cost of transformer at audio frequencies
size of transformer at audio frequencies
size of transformer at radio frequencies
cost and size of transformer at audio frequencies

⇒ A network contains only independent current source and resistors. If the values of all resistors are doubled, the value of the node voltage
will become half
will remain unchange
will become one third
cannot be determined unless the circuit configuration and the values of the resistors are known

⇒ An ammeter is
secondary instrument
absolute instrument
recording instrument
integrating instrument

⇒ The absorption of radio waves by the atmosphere depends on
the polarization of the waves
the polarization of the atmosphere
frequency of the waves
their distance from the transmitter

⇒ The percentage saving in power of 100% modulated suppressed carrier AM signal is
100
75
66.6
50

⇒ While AM has __________ frequencies, FM has __________ number of sidebands.
2, 3
3, 3
3, 5
3, infinite

⇒

Match the following:

	List I		List II
A.	Word wrap	1.	interleaved execution of two or more programs by the same computer
B.	Client	2.	automatically moves a word to the next line if it does not fit in the current line
C.	Multitasking	3.	an application receiving data
D.	Landscape	4.	orientation of worksheet

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

⇒ Which of the following microphones has an inbuilt amplifier?
Condenser
Moving coil
Ribbon
Carbon