Question is ⇒ Logarithmic amplifiers are used in, Options are ⇒ (A) adders, (B) dividers, (C) multipliers, (D) all of the above, (E) , Leave your comments or Download question paper.

Question is ⇒ Logarithmic amplifiers are used in, Options are ⇒ (A) adders, (B) dividers, (C) multipliers, (D) all of the above, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Logarithmic amplifiers are used in
A.	adders [Wrong Answer]
B.	dividers [Correct Answer]
C.	multipliers [Wrong Answer]
D.	all of the above [Wrong Answer]
View Answer 1 -4 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 :

⇒ To determine the polarity of voltage drop across a resistor, it is sufficient to know
direction of current through the resistor
direction and magnitude of current through the resistor
direction and magnitude of current and value of resistance
magnitude of current through the resistance

⇒ It is best to use for coupling a coaxial line to a parallel wire transmission line.
directional Coupler
balun
slotted line
tee

⇒ In a two terminals network the O.C. voltage measured at the given terminals is 100 V and s.c., currents at the same terminals 5 A. If a load of 80 Ω resistance is connected at the terminals, load current is
0.0416666666666667
1.25 A
0.25
6.25 A

⇒ In the graphical analysis of CE amplifier circuit, the upper end of load line is called
saturation point
cut off point
Q point
none of the above

⇒ The K-map for a Boolean function is shown in figure. The number of essential prime implicants for this functio
4
5
6
8

⇒ Two resistances are R₁ = 36 ± 5% and R₂ = 75 ± 5%. If they are connected in parallel, the limiting error in percent will be
0.05
0.1
0.15
0.2

⇒ 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
has a length equal to λ/2

⇒ A broadcast radio transmitter radiates 5 kW when the modulation percentage is 60. How much of this is carrier power?
6.66 kW
5 kW
4.9 kW
4.23 kW

⇒ If a linear time invartant system is exicited by a pure random signal like white noise, the output of the linear system will have which of the following properties?
Output will be a white noise
Output will be periodic
Output will be random
Output will be correlated or coloured noise

⇒ When a lead acid battery is fully charged the colours of its positive and negative plates are
grey and dark brown
dark grey and brown
grey and brown
dark brown and grey

⇒ In a thyristor the gate lead is connected to the n layer near the p layer to which anode is connected.
TRUE
FALSE

⇒ The characteristic equation of a feedback control system is given by s³ + 5s² + (K + 6)s + K
(- 3, 0)
(- 2, 0)
(- 1, 0)
(2, 0)

⇒ In a minimum phase system
all poles lie in the left half plane
all zeros lie in the left half plane
all poles lie in the right half plane
all except one pole or zero lie in the left half plane

⇒ In terms of signum function sgn(t), unit step function u(t) =
1 + sgn(t)
1 - sgn(t)
0.5 + 0.5 sgn(t)
0.5 - 0.5 sgn(t)

⇒ The units of F(jω) are volt-seconds.
TRUE
FALSE

⇒ The integral of a unit step function is
an impulse function
a ramp function
a ramp function of slope 1
none of these

⇒ Which of the following terms is not applicable to Yagi-Uda array?
High gain
Folded dipole
Parasitic elements
Good bandwidth

⇒ Square law modulators utilise
linear range of V-I characteristics of a diode
linear range of V-I characteristics of a triode
non-linear region of V-I dynamic characteristics of a diode
non-linear region of V-I dynamic characteristics of a triode

⇒ A current 10 sin (200t) A flows through a 5 mH inductance. The expression for voltage is
10 sin (200t + 90°)
10 sin (200t - 90°)
10 sin(1000t + 90°)
10 sin (1000t - 90°)

⇒

Assertion (A): In CC amplifier the collector is at ac ground

Reason (R): CC amplifier is also called emitter follower

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

⇒

Match the following:

	List I (Operator)		List II (Description)
A.	! =	1.	Left shift
B.	= =	2.	Right Shift
C.	< <	3.	Equal to
D.	> >	4.	Not equal to

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

⇒ Modulation index of a AM wave is measured using oscilloscope. The display on the CRO is as shown in figure it can be concluded t
the output wave is distorted
the output wave is under modulated
the modulation index is 100%
the modulation index is 50%

⇒ A 24 mm long conductor has a resistance of 128 Ω. The change in resistance is 13.3 Ω and change in length is 1.6 mm under tension. The gauge factor is
1.2
1.6
2.1
2.6

⇒

Assertion (A): A transistor requires a continuous base signal for conduction but a thyristor requires a gate pulse.

Reason (R): Transistor find widespread application in power electronic circuits.

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

⇒ The distance between target and radar is reduced to half. Power received increases by
42751
42739
4 times
16 times

⇒ Which of the following instructions have only one operand?
Multiply
Add
Shift
Subtract

⇒ The phenomenon of dielectric hysteresis occurs with
dc
ac
both ac and dc
none of the above

⇒ A step voltages is applied to RLC series circuit having R = 2 Ω, L = 1 H and C = 1 F. The transient current response will be
over damped
critically damped
under damped
any of the above depending the magnitude of voltage

⇒ The first dominant pole encountered in the frequency response of a compensated op-amp is approximately at
5 Hz
10 kHz
1 MHz
100 MHz

⇒

Assertion (A): A non-sinusoidal wave can be expressed in terms of sine waves of different frequencies which are multiples of the frequency of fundamental.

Reason (R): If negative half of a complex wave is a reproduction of the positive half, the even harmonics are absent.

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