Question is ⇒ In synchronous detection of an AM signal, Options are ⇒ (A) Carrier is completely suppressed, (B) Both side hands are suppressed, (C) Only one side band and part of carrier is suppressed, (D) One side band and full carrier is suppressed, (E) , Leave your comments or Download question paper.

Question is ⇒ In synchronous detection of an AM signal, Options are ⇒ (A) Carrier is completely suppressed, (B) Both side hands are suppressed, (C) Only one side band and part of carrier is suppressed, (D) One side band and full carrier is suppressed, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In synchronous detection of an AM signal
A.	Carrier is completely suppressed [Wrong Answer]
B.	Both side hands are suppressed [Wrong Answer]
C.	Only one side band and part of carrier is suppressed [Correct Answer]
D.	One side band and full carrier is suppressed [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 figure, the switch is closed at t = 0. After some time i = 6A and rate of change of current was 4A/s. The value of inducto
1 H
1.5 H
indeterminate
0.5 H

⇒ In a step down chopper using pulse width modulation, T_on = 3 x 10^-3 and T_off = 1 x 10^-3 s. The chopping frequency is
333.33
250
500
1000

⇒ The inverse response of a system h(n) = aⁿ∪(n) what is the condition for the system to be BIBO stable?
a is real and +ve
a is real and -ve
|a| > 1
|a| < 1

⇒ Which of the following noise does not occur in transistors?
Partition noise
Shot noise
Flicker noise
Resistance noise

⇒ As a compared to a CB amplifier, a CE amplifier has
lower current amplification
higher current amplification
lower input resistance
higher input resistance

⇒ 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)

⇒

Assertion (A): Chopper always requires forced commutation

Reason (R): Morgan chopper uses a saturable reactor.

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

⇒ Electrical contact materials used in switches, brushes, relay must possess
high thermal conductivity and high melting point
low thermal conductivity and low melting point
high thermal conductivity and low melting point
low thermal conductivity and high melting point

⇒ Which one is a non-causal system?
y(n) = x(2n)
y(n) = x(n/2)
y(n) = x(n/2) + x(n)
all

⇒ The number of bits in EBCDIC is
12
10
8
6

⇒ Two capacitors of 1 μF and 2 μF are connected in series across a 10 V dc battery. After the capacitors have been charged, the charges across the two capacitors will be
10 μC each
20 μC each
10 μC and 20 μC
20 μC and 10 μC

⇒ An earth mat for a communication tower consists of
one or two radials extending from base of tower at a depth of about 5 cm below ground
a large number of radials extending from base of tower at a depth of about 3 m
a large number of radials extending from base of tower at a depth of about 30 cm
none of the above

⇒ Figure shows a Wheatstone bridge with RTD to one arm. If resistance of RTD = 1020 Ω, the voltage V₀
49 mV
51 mV
48 mV
45 mV

⇒ The directive gain of λ/2 resonant wire is 1.64.
TRUE
FALSE

⇒ A 50 Hz current has an amplitude of 10 A. The rate of change of current at t = 0.005 after i = 0 and is increasing is
2221.44 A/s
0
- 2221.44 A/s
- 3141.6 A/s

⇒ A transmission line having 50 Ω impedance is terminated in a load of (40 + j 30) Ω. The VSWR is
j 0.033
0.8.+ j 0.6
1
2

⇒ The r.m.s. value of a half-wave rectified current is 100 A. Its value for full-wave rectification would be __________ amperes.
141.4
200
200/p
40/p

⇒ (11)₂ + (11)₃ = (11)_?
4
5
6
not possible

⇒ The spectrum of the white noise and an impulse function is similar in following aspects
both have similar magnitude spectrum
both have similar magnitude and Phase spectrum
no relation
similar phase spectrum

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

⇒ Binary number 101101 when converted to its 2's complement will become
101.01
100.1
100.1
101.1

⇒ If J, I and a denote current density, current and area of cross section of a conductor, then
J = Ia
J = I/a²
J = I/a
J = Ia²

⇒ ECL is a saturating logic.
TRUE
FALSE

⇒ In a 7 segment display, LEDs b and c lit up. The decimal number displayed is
9
7
3
1

⇒ When analysing two port networks in cascade, it is more convenient to use
z parameters
h parameters
T parameters
y parameters

⇒ The currents fed to the two dipoles of turnstile antenna are
in phase
in quadrature
in phase opposition
either (a) or (c)

⇒ The output characteristics of a bipolar transistor has three distinct regions. They are known as
saturation region, active region and breakdown region
inactive region, active region and breakdown region
inactive region, saturation region and active region
inactive region, saturation region and breakdown region

⇒ When two ALU 1C 74181 are cascaded
the carry out of first stage is connected to carry in of second stage
the carry in of first stage connected to carry in of second stage
the carry in of first stage is connected to carry out of second stage
the carry out of first stage is connected to carry out of second stage

⇒ In measuring a resistance by voltmeter-ammeter method, the voltmeter can be connected either across supply or across the resistance. If the resistance is low, the voltmeters should be connected
across the supply
across the resistance
either in two positions
preferably across the supply

⇒

Assertion (A): For the function shown in fi
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