Question is ⇒ A pre-emphasis circuit, Options are ⇒ (A) boosts base frequencies, (B) pre amplifies the complete audio band, (C) amplifies higher audio frequencies, (D) converts FM into phase modulation, (E) , Leave your comments or Download question paper.

Question is ⇒ A pre-emphasis circuit, Options are ⇒ (A) boosts base frequencies, (B) pre amplifies the complete audio band, (C) amplifies higher audio frequencies, (D) converts FM into phase modulation, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A pre-emphasis circuit
A.	boosts base frequencies [Wrong Answer]
B.	pre amplifies the complete audio band [Wrong Answer]
C.	amplifies higher audio frequencies [Correct Answer]
D.	converts FM into phase modulation [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 :

⇒ In a varistor, as the voltage increases beyond a certain value, its resistance
rapidly increases
rapidly decreases
becomes negative, i.e., varistor goes into negative resistance region
none of these

⇒ In a circular waveguide with radius r, the dominant mode is
TM₀₁
TE₀₁
TM₁₁
TE₁₁

⇒ AB + AB =
B
A
1
0

⇒ In the signal flow graph of figure, y/x equ
3
42857
2
None of the above

⇒

Match the following:

	List I (Logic family)		List II (Characteristic)
A.	TTL	1.	Maximum power consumption
B.	ECL	2.	Highest packing density
C.	NMOS	3.	Least power consumption
D.	CMOS	4.	Saturated Logic

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

⇒ In a cable with ∈_r = 4, the wave velocity is
3 x 10⁸ m/s
0.75 x 10⁸ m/s
1.5 x 10⁸ m/s
10⁸ m/s

⇒

Match the following:

	List I (Octal)		List II (Hexadecimal)
A.	66	1.	3 F
B.	77	2.	36
C.	55	3.	27
D.	47	4.	3D

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

⇒ Commercial ECL gates use two ground lines and one negative supply to
reduce power consumption
increase fan out
reduce loading effect
eliminate the effect of power line glitches on the biasing circuit

⇒ Consider the Boolean expression X = ABCD + ABCD + ABCD + ACBD The simplified form of X is
C + D
BC
CD
B

⇒ In common base configuration, the input characteristics of bipolar junction transistor are drawn between
V_EB and I_E
V_CB and I_C
I_C and V_CE
I_E and V_CE

⇒ The density of the dynamic RAM is
more than that of static RAM
less than that of static RAM
equal to that to static RAM
equal to or more than that of static RAM

⇒ The expression A ** B / C + D is equivalent to
AB / C + D
AB / C + D
AB / (C + D)
None of the above

⇒

Assertion (A): The turn on time of SCR is about 1 to 4 ms.

Reason (R): The turn off time of SCR is about 10 to 300 ms.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ (FE35)₁₆ XOR (CB15)₁₆ is equal to
(3320)₁₆
(FE35)₁₆
(FF50)₁₆
(3520)₁₆

⇒ The operating voltage of a megger is about
100 V
12 V
6 V
1 V

⇒

Assertion (A): Silicon is less sensitive to changes in temperature than germanium.

Reason (R): Cut in voltage in silicon is less than that in germanium.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true

⇒ In the circuit of figure the current through 3 Ω resistance at t = 0^{+0.166666666666667
2.5 A
3.1 A
0}

⇒

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

⇒ Consider the following ON GO TO statement in Ba
10, 20, 30, 20 respectively
10, 20, 20, 30 respectively
20, 30, 20, 10 respectively
10, 30, 20, 20 respectively

⇒ For broadcasting purpose, full AM signal is preferred to SSB signal because
it requires large bandwidth
generation of full AM is easier
detection of full AM is simpler
none of the above

⇒ 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

⇒ A quantization error is an essential aspect of ADC
TRUE
FALSE

⇒ In a tape recorder
the width of air gaps of record and erase heads is almost equal
the air gap of record head is wider than the air gap of erase head
the air gap of erase head is wider than the air gap of record head
any of the two air gaps can be wider than the other

⇒ 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

⇒ Metals approach superconductivity conditions
near absolute zero temperature
near critical temperature
at triple point
under the conditions of high temperature and pressure

⇒ Which of the following directives in 8085 causes two bytes to be reserved in the memory?
D S
D B
D W
E Q U

⇒ A rectangular waveguide measures 3 x 4.5 cm internally and has a 10 GHz signal propagated in it. Calculate the wave impedance for dominant mode.
130 p
1.3 p
120 p
12 p

⇒ In equally tampered musical scale, an octave is divided into
12 intervals
10 intervals
7 intervals
5 intervals

⇒ The slope of the transfer characteristics of an N-channel JFET is
positive
negative
constantly varying
zero

⇒ In the given figure the reflection coefficient at source en
1
-1
42738
-1/3