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In frequency modulation noise can be further reduced by | |
A. | increasing deviation [Correct Answer] |
B. | reducing deviation [Wrong Answer] |
C. | reducing carrier frequency [Wrong Answer] |
D. | increasing signal amplitude [Wrong Answer] |
View Answer
Explanation:-
Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
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⇒ A compensator has its pole and zero as shown in the given fi
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⇒ The sensitivity of a superheterodyne receiver is determined by
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the gain of RF amplifier
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⇒ A data signal having frequency components from dc to 50 Hz is to be sent through pulse code modulation using an 8 digit code. The minimum carrier channel bandwidth is
1 kHz
2 kHz
4 kHz
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⇒ The characteristic equation of a control system is given as s^{4} + 8s^{3} + 24s^{2} + 32s + K = 0. What is the range of values of K for this system to be stable?
0 ≤ K < 80
0 ≤ K < 100
0 ≤ K < 2300
0 ≤ K < 600
⇒
Assertion (A): The response of a network to unit impulse can be obtained directly from the network function.
Reason (R): The response of a network for any input can be obtained from impulse response.
Both A and R are true and R is correct explanation of A
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⇒ Waveguides are generally used above
20 MHz
100 MHz
200 MHz
1000 MHz
⇒ A Marconi antenna
is a grounded antenna with a length equal to λ/4
is an ungrounded antenna with a length equal to λ/4
has a length equal to 1
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⇒ In a platinum RTD, the change in resistance for a temperature rise of 50° C is about
0.02
0.1
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⇒ As per Shannon-Hartley theorem, a noise less Gaussian channel has
zero capacity
infinite capacity
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⇒ As compared to LED, LASER has
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Voltage shunt feedback and decrease I/P impedance.
Voltage series feedback and increase I/P impedance.
Voltage shunt feedback and increase I/P impedance.
⇒ A series resonant circuit has parameters 10 ω, 1 H and 0.1 F. It is excited by a voltage v = 100 sin ωt. At resonant frequency, the power dissipated in the circuit is
1000 W
707 W
500 W
414.14 W
⇒ Consider the directive T : DS105. This directive
directs the assembler to reserve a sequence of 105 bytes in the memory
directs the assembler to reserve a sequence of 105 bits in the memory
directs the assembler to reserve a sequence of consecutive 105 bytes in the memory
directs the assembler to reserve a sequence of consecutive 105 bits in the memory
⇒ The number of spectral component when two cosine waves are multiplied of different frequency
1
2
8
4
⇒ The amplifier used in miller voltage sweep should have a gain of
-∞
1
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⇒ A series resonant circuit has R = 2 Ω, L = 0.1 H and C =10 μF. At resonance applied voltage = 10 ∠0 V. Voltage across inductance is likely to be
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Assertion (A): In control system velocity error is not an error in velocity but is an error in position due to a ramp input.
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A is correct but R is wrong
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⇒ If J, I and a denote current density, current and area of cross section of a conductor, then
J = Ia
J = I/a^{2}
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⇒ The concentration of minority carriers in an extrinsic semiconductor under equilibrium is
directly proportional to the doping concentration
inversely proportional to doping concentration
directly proportional to intrinsic concentration
inversely proportional to the intrinsic concentration
⇒ If f_{h}(t) is Hilbert transform of f(t), then Hilbert transform of f_{h}(t) is
-f(t)
+f(t)
f^{2}(t)
f(t)
⇒ Consider the following statements:
- In the 2's complement representation, negative numbers are stored in sign magnitude form.
- Taking 2's complement is equivalent to sign change.
- In a 4 bit complement representation of a binary number A.
- In the 2's complement representation the most significant bit (MSB) is zero for a positive number.
(I) and (III)
(I) and (IV)
(II) and (III)
(II) and (IV)
⇒ Secondary emission is always decremental.
TRUE
FALSE
⇒ The logic circuit given below converts a binary code y_{1} y_{2}, y_{3}
Excess - 3 code
Gray code
BCD code
Hamming
⇒ A 3 phase bridge inverter is fed by 400 V battery. The load is star connected and has a resistance of 10 Ω per phase. The peak value of load current is
40 A
20 A
0.416666666666667
0.208333333333333
⇒ A choke coil has a resistance to reactance ratio of 0.2. The power factor of the choke coil is
less than 0.2 lagging
less than 0.2 leading
about 1
about 0
⇒ If t_{on} and t_{off} are the turn on and turn off times of a thyristor, then
t_{on} and t_{off} are almost equal
t_{on} >> t_{off}
t_{off} >> t_{on}
t_{on} is about twice t_{off}
⇒ Which circuit is called emitter follower?
CC
CE
CB
Both (a) and (b)
⇒ A leaky dielectric has ∈_{r} = ∈_{r}^{'} - j∈_{r}^{"}. If a field E is applied, the current component in phase with E is proportional to ∈_{r}^{"}.
TRUE
FALSE