Question is ⇒ The disadvantage of direct coupled amplifiers is, Options are ⇒ (A) drift, (B) large size of transistor, (C) low voltage gain, (D) both (b) and (c), (E) , Leave your comments or Download question paper.

Question is ⇒ The disadvantage of direct coupled amplifiers is, Options are ⇒ (A) drift, (B) large size of transistor, (C) low voltage gain, (D) both (b) and (c), (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The disadvantage of direct coupled amplifiers is
A.	drift [Correct Answer]
B.	large size of transistor [Wrong Answer]
C.	low voltage gain [Wrong Answer]
D.	both (b) and (c) [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A 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 :

⇒ Consider the following statements about mutual inductances:

The value should remain constant under all conditions.
The mutual inductance should not vary with temperature.
The inductance should be independent of excitation.
They have two coils wound on a bobbin of hard magnetic material, coils being separated by a range.

Out of the above, correct statement are
2, 3, 4
1, 2, 3
1, 3, 4
1, 2, 4

⇒ The output v-i characteristics of enhancement type MOSFET has
only an ohmic region
only a saturation region
an ohmic region at low voltage value and a saturation region at high voltage
a saturation region at low voltage value and an ohmic region at high voltage

⇒ The property is not valid for basic singularity function is
it is even signal
convolution of any arbitary function x(t) and an impulse is the original function itself
the sum of two impulses at same location is the impulse with the strength equal to the summation of individual strengths.
none of these.

⇒ Windows have a user friendly program called 'Front Page Express' for creating web pages.
TRUE
FALSE

⇒ When a series RL circuit having power factor angle 0 is switched on to an ac voltage V_m sin (ωt + Φ), the transient term is zero if Φ = 0.
TRUE
FALSE

⇒ Which binary subtraction is incorrect?
100101 - 100011 = 000000
10000000 - 01000000 = 1000000
10111110.1 - 101011.11 = 110010.11
11111111 - 1111111 = 10000000

⇒ Which of the following couplings may cause unwanted clamping?
Resistive
Inductive
Capacitive
Both (a) or (b)

⇒ In D-type FF, Preset (Pr) and clear (Clr) inputs are called
Synchronous
Asynchronous
Data
None

⇒ The term __________ applies to troposcatter propagation
fading
Faraday rotation
SIDS
atmospheric storms

⇒ The function H (s) is positive real if
H (s) has no poles or zeros in right half plane
The poles of H(s) on the imaginary axis are simple with real and positive residues
Re [H(jω)] ≥ 0 for 0 ≤ ω ≤ ∞
all of the above

⇒ In a P-N-P transistor, with normal bias, the emitter junction
is always reverse biased
offers very high resistance
offers a low resistance
remains open

⇒ Which one of the following gain equations is correct for a MOSFET common-source amplif
A_V = g_m/(1 - R_D)
A_V = g_m/R_D
A_V = g_m/(1 + R_D)
A_V = R_D/g_m

⇒ Antenna used for direction finding is
long dipole
parabolic
rhombic
helical

⇒ A class C amplifier has input frequency of 200 kHz. If width of collector pulses is 0.1 μs, duty cycle is
0.01
0.02
0.1
0.2

⇒ When a series RL circuit is switched on to a dc voltage, the rate of change of current is maximum at t = 0.
TRUE
FALSE

⇒ In every practical oscillator, the loop gain is slightly larger than unity and the amplitude of the oscillations is limited by the
magnitude of the loop gain
onset if non-linearity
magnitude of gain of the amplifier
feedback transmission factor

⇒ In a bipolar transistor, emitter efficiency is about
0.99
0.9
0.8
0.7

⇒ The full form of the abbreviations TTL and CMOS in reference to logic families are
Triple Transistor Logic and Chip Metal Oxide Semiconductor
Tristate Transistor Logic and Chip Metal Oxide Semiconductor
Transistor Transistor logic and Complementary Metal Oxide Semiconductor
Trisate Transistor Logic and Complementary Metal Oxide Silicon

⇒ Between which points does UJT exhibit negative resistance characteristics
between peak and valley points
before peak point
after peak point
after valley point

⇒

Assertion (A): Damping in a vibration galvanometer is small.

Reason (R): Vibration galvanometer is a PMMC instrument.

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 R is false
A is false R is true

⇒ Transmitted voltage level is:
11
7.8
7.348 V
none of these

⇒ Form factor for a sine wave is
1.414
0.707
1.11
0.637

⇒ In practical commercial AM system channel bandwidth is
150 kHz
100 kHz
15 kHz
200 kHz

⇒ In 8085 the instruction MOV A, M is an example of
Direct addressing
Immediate addressing
Register addressing
Register indirect addressing

⇒ Decimal 1932 when converted into 10's complement will become
8868
8060
8608
8806

⇒ At midband frequencies the coupling capacitor in RC coupled CE amplifier may be considered as
open circuit
short circuit
a reactance equal to load resistance
none of the above

⇒ The decimal equivalent of binary 1101.11 is
9.75
13.75
11.5
11.75

⇒

Assertion (A): Linear ICs include audio amplifier, wideband amplifier, RF amplifier and IF amplifier

Reason (R): The error voltage in a feedback circuit is very small

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

⇒ An R-L series circuit is excited by a voltage v(t). The circuit was initially relaxed. Which of the following sources of v(t) would cause maximum current at t = 0⁺?
unit step
unit impulse
unit ramp
unit step plus unit ramp

⇒ Which of the following is not correct?
P(A) = P(A) - 1
0 ≤ P ≤ 1
If A and B are mitual exclusive then P(A + B) = P(A) + P(B)
P(A) = 1 - P(A)