Question is ⇒ In standard TTL, the 'totem pole' stage refers to, Options are ⇒ (A) the multi-emitter I/P stage, (B) phase splitter, (C) the O/P buffer, (D) open collector O/P stage, (E) , Leave your comments or Download question paper.

Question is ⇒ In standard TTL, the 'totem pole' stage refers to, Options are ⇒ (A) the multi-emitter I/P stage, (B) phase splitter, (C) the O/P buffer, (D) open collector O/P stage, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	In standard TTL, the 'totem pole' stage refers to
A.	the multi-emitter I/P stage [Wrong Answer]
B.	phase splitter [Wrong Answer]
C.	the O/P buffer [Correct Answer]
D.	open collector O/P stage [Wrong Answer]
View Answer 2 -7 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 :

⇒ For a low level AM system, the amplifiers modulated stage must be
linear devices
harmonic devices
class C amplifiers
non-linear devices

⇒ In an R-L circuit excited by a battery of voltage E, the current and voltage across resistor are 1- e^-t and 2(1 - e^-t) respectively. If there were an initial current of 2 A in the inductance, the voltage across resistance would have been
1 - e^-t
2 - 2e^-t
2 + 2e^-t
4 - 4e^-t

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

⇒

Assertion (A): An ac amplifier uses coupling capacitors at input and output

Reason (R): The capacitive reactance varies inversely with frequency. It is infinite for dc

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

⇒ ROC of sequence x[n] = (3)ⁿ ∪[n] + (4)ⁿ ∪[- n - 1]
|z| > 4
3 < |z| < 4
|z| < 4
|z| > 3

⇒ Drift velocity of electrons is generally less than 1 mm/s.
TRUE
FALSE

⇒ The total field produced by an antenna array system at a distance from it is
sum of the field produced by the individual antennas of the array system
directional gain of antenna
linear antenna gain
vector sum of the field produced by the individual antennas of the array system

⇒ In an ac circuit that delivers constant power at varying p.f., the current is
lowest when p.f. is leading
lowest when p.f. is lagging
lowest when p.f is unity
the same for all power factors

⇒ The multiplication of two n bit numbers gives a product of length less than or equal to
n bits
2ⁿ bits
2n bits
2ⁿ - 1 bits

⇒ If the intermediate frequency of a superheterodyne receiver falls within the tuning range of the receiver
Unsuitability will occur
Heterodyne whistles will be heard
Tuning to the frequency band immediately adjacent to the intermediate frequency will become impossible
All of the above

⇒ For a microprocessor system using IO-mapped IO the following statement is NOT true
memory space available is greater
not all data transfer instructions are available
IO and memory address spaces are distinct
IO address space is greater

⇒ Which of the following factor does NOT contribute to the drift of a geostationary satellite from its stationary position in space?
Pressure of solar radiations
Gravitational changes due to Sun and Moon
Oblateness of the Earth
Weight of the satellite

⇒ In a driving point function poles and zeros must be conjugate if complex or imaginary.
TRUE
FALSE

⇒ A voltage of 9 V is applied in forward direction to a semiconductor diode in series with a load resistance of 1000 Ω. The voltage across the load resistance is zero. It indicates that
diode is short circuited
diode is open circuited
resistor is open circuited
diode is either o.c or s.c

⇒ A Darlington circuit is obtained by connecting
two CB stages in cascade
two CE stages in cascade
a CE stages followed by CB stage
two emitter follower in cascade

⇒

Assertion (A): In a serial in-serial out shift register, access is available only to the left most or right most flip flops

Reason (R): If the output of a shift register is feedback to serial input it can be used as a ring counter.

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

⇒ Assuming V_{CE sat} = 0.2 V and β = 50, the minimum base current (I_B) required to drive the transistor in the given figure to saturatio
56 μA
140 μA
60 μA
3 μA

⇒ Each instruction in assembly language program has the following fields:

Lable field
Mnemonic field
Operand field
Comment field

The correct sequence of these fields is?
1, 2, 3, 4
1, 2, 4, 3
2, 1, 3, 4
2, 1, 4, 3

⇒ The equivalent unit of joule is
newton
newton-meter
newton-metre²
none of the above

⇒ Surface integral of the electric field intensity is
differential of volume flux
electrical charge
net flux emanating from the surface
none of the above

⇒

Assertion (A): A slight change in pole-zero configuration can cause only minor changes in root locus configuration.

Reason (R): Asymptotes show the behaviour of root loci for |s| >> 1

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 correct but R is wrong
R is correct but A is wrong

⇒ 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

⇒ For measurement of surface temperature of solids the elements of RTD is usually in the shape of
bar
coil
flat grid
either (a) or (b)

⇒ In figure V_CE (sat) = 0.1 V. Then I_C (sa
10 mA
20 mA
30 mA
40 mA

⇒ The scale of PMMC instrument is linear.
TRUE
FALSE

⇒ The lowest frequency used in satellite communications is __________ GHz.
0.8
3
18
30

⇒ The noise performance of a square law demodulator of AM signal is
better than that of an envelope detector
better than that of a synchronous detector
identical with that of a synchronous detector
poorer than that of an envelope detector

⇒ The reverse saturation current depends on the reverse bias.
TRUE
FALSE

⇒ For TM waves in a parallel plate waveguide, the minimum attenuation arising from imperfect conductors would occur at a freq. of (f_c is the cut off frequency)
3 f_c
3 f_c
2 f_c
2 f_c

⇒ VLF waves are sometimes used because
they penetrate the ionosphere easily
they are very reliable
they require low power
they require transmitting antennas of convenient sizes