Question is ⇒ The dissipation at the collector is in the quiescent state and increases with excitation in the case of a, Options are ⇒ (A) class A series fed Amplifier, (B) class A transistor coupled Amplifier, (C) class AB amplifier, (D) class B amplifier, (E) , Leave your comments or Download question paper.

Question is ⇒ The dissipation at the collector is in the quiescent state and increases with excitation in the case of a, Options are ⇒ (A) class A series fed Amplifier, (B) class A transistor coupled Amplifier, (C) class AB amplifier, (D) class B amplifier, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The dissipation at the collector is in the quiescent state and increases with excitation in the case of a
A.	class A series fed Amplifier [Wrong Answer]
B.	class A transistor coupled Amplifier [Wrong Answer]
C.	class AB amplifier [Wrong Answer]
D.	class B amplifier [Correct Answer]
View Answer 2 -1 Explanation:- Answer : D 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 :

⇒ If it is desired to tabulate number of students in a class in Fortran language, a proper variable name is
ST
STUD
NSTUD
STD

⇒ A full subtractor has a total of
2 inputs
3 inputs
4 inputs
5 inputs

⇒ Two voltages are -5 V and -10 V. In positive logic
-5 V is 1 and -10 V is 0
-10 V is 1 and -5 V is 0
-5 V is 1 in some circuits and 0 in others
-10 V is 1 in some circuits and 0 in others

⇒ A virtual ground is a ground for
voltage
current
both voltage and current
voltage but not for current

⇒ Consider the following statem
1 alone
2 alone
3 alone
1 and 3

⇒ When a single phase dual converter is operating in circulating current mode
both converters are working as rectifiers simultaneously
one converter is always working as rectifier and the other as inverter
only one converter is working at one time
both converters are either working as rectifiers or as inverters simultaneously

⇒

Assertion (A): When an electron is revolving in its orbit and magnetic field is also present, the angular frequency of electron will be affected by the magnetic field.

Reason (R): In the case of electron revolving in its orbit in the presence of magnetic field, the orbital magnetic dipole moment is not affected by the presence of magnetic field.

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

⇒ The counter in the given figur
Mod 3
Mod 6
Mod 8
Mod 7

⇒ Narrow band FM signal can be represented as
A cos (2pf_ct) - βA sin (2pf_ct) sin (2pf_mt)
A cos (2pf_mt) - βA sin (2pf_ct) sin (2pf_mt)
A cos (2pf_ct) + βA sin (2pf_ct) sin (2pf_mt)
A cos (2pf_mt) + βA sin (2pf_mt) sin (2pf_ct)

⇒ In all base driver amplifiers
ac collector voltage is 180° out of phase with ac base voltage
ac emitter voltage is 180° out of phase with ac base voltage
ac collector voltage is in phase with ac base voltage
none of the above

⇒ A silicon PN junction with no bias have a doping concentration
3.345 x 10^-3 cm
3.345 x 10^-4 cm
3.345 x 10^-5 cm
3.345 x 10^-6 cm

⇒ In microwave communication links the fading due to rain occurs. The methods to solve this problem include
antenna replacement and feed correction
amplitude trimming and phase correction
polarization shifting and code diversity
path diversity and frequency diversity

⇒ j⁶ =
j
j²
j³
- j

⇒ An 8 level encoding scheme is used in a PCM system of 10 kHz channel BW. The channel capacity is
80 kbps
60 kbps
30 kbps
18 kbps

⇒ In a two tone AM system the two modulating frequencies are 2000 p and 4000 p rad/sec. If carrier frequency is 2p x 10⁶ rad/sec the frequencies of upper sidebands are
1.002 MHz and 1.004 MHz
1.001 MHz and 1.002 MHz
1.001 MHz and 1.004 MHz
1.002 MHz and 1.008 MHz

⇒

Assertion (A): Energy meters use induction principle.

Reason (R): Induction wattmeter is less accurate than a dynamometer wattmeter.

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

⇒ In graphical analysis of BJT amplifier the slope of ac line is more than that of dc load line.
TRUE
FALSE

⇒ A Schottky diode clamp is used along with a switching BJT for
reducing the power
reducing the switching time dissipation
increasing the value of β
reducing the base current

⇒ The current distribution of a half wave dipole is
uniform
sinusoidal
triangular
complex

⇒ The permeability of soft iron can be increased by
purifying it
reducing carbon percentage
alloying with cobalt
increasing percentage

⇒ During discharging a capacitor through a resistance, voltages across R and C are equal in magnitude.
TRUE
FALSE

⇒ CMOS is widely used in
digital wrist watches
analog circuits
high power circuits
all of the above

⇒ The ac input voltage of an amplifier
is always equal to ac signal voltage
may be equal to or more than ac signal voltage
is always less than ac signal voltage
may be equal or more or less than ac signal voltage

⇒ Which of these commutation methods is used in AC-DC converters?
Class A
Class C
Class D
Class F

⇒ The number of protons in a silicon atom are
4
8
12
14

⇒ c(t) and m(t) are used to generate an AM signal. The modulation index of the generated AM signal is 0.5 then the quant
42737
42739
42738
42743

⇒ In the circuit shown in the given figure, the current flowing through resistance of 100 Ω woul
8 mA
10 mA
20 mA
100 mA

⇒ DC ampere hour meter is an indicating instrument.
TRUE
FALSE

⇒ Which one is correct option about ROC?
ROC does not contain any pole
ROC of finite duration sequence is entire plane expect z = 0, z = ∞
a and b
only a

⇒ Characteristic wave impedance is
ε/μ
(ε/μ)^1/2
E_x/H_y
H_y/E_x