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Assertion (A): The carry look ahead adder is very fast Reason (R): The carry look ahead adder generates the carry and sum digits directly. | |
A. | Both A and R are correct and R is correct explanation of A [Wrong Answer] |
B. | Both A and R are correct but R is not correct explanation of A [Wrong Answer] |
C. | A is true, R is false [Correct Answer] |
D. | A is false, R is true [Wrong Answer] |
View Answer
Explanation:-
Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ In a loss line R_{L} < Z_{0}, then
Reflection coefficient is zero
Reflection coefficient is ∞
Reflection coefficient is negative
Reflection coefficient is positive
⇒ The standard FORTRAN exponential form of decimal number 0.0000437 is
4.37 E - 5
4.37 E - 4
43.7 E - 5
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⇒ An increase in junction temperature of a semiconductor diode
causes a small increase in reverse saturation current
causes a large increase in reverse saturation current
does not affect reverse saturation current
may cause an increase or decrease in reverse saturation current depending on rating of diode
⇒
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
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⇒ The standard FORTRAN exponential form of decimal number 0.0000437 is
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⇒ An increase in junction temperature of a semiconductor diode
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may lie anywhere on s plane
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the total number of side bands depend on modulation index
⇒
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both converters are working as rectifiers simultaneously
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only one converter is working at one time
both converters are either working as rectifiers or as inverters simultaneously
⇒ When a capacitor is connected to the terminals of an ohmmeter, the pointer indicated a low resistance initially and finally come to infinity position. This shows that capacitor is
short circuited
all right
faulty
open circuited
⇒ The number of variables in a function is odd and the number of minterms with even number of 0's are same as the number of minterms with odd number at 1's, the expression formed can be represented in __________ as well as __________ form.
Ex - OR, NOR
Equivalence, Ex - OR
AND, Coincidence
OR, Ex - OR
⇒ In a thyristor, the forward breakover voltage
is constant
may be constant or may depend on gate current
decreases as gate current is increased
increases as gate current is increased
⇒ From which instant is the turn off time of a thyristor defined
when anode voltage becomes zero
when anode current becomes zero
when both anode voltage and current become zero
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⇒ Electrons can be emitted from a metal surface due to high electric field.
TRUE
FALSE
⇒ The cascade amplifier is a multistage configuration of
CC-CB
CE-CB
CB-CC
CE-CC
⇒ Which statement is incorrect for the signal x(t) = 5 sin (2p x 10^{3}t) sin (2p x 10^{6}t)?
Upper side band frequency is 1001000
Carrier amplitude is 5
Lower sideband frequency is 990000
x(t) is DSB-SC
⇒ Thevenin's equivalent circuit
can be drawn only in time domain
can be drawn only in frequency domain
can be drawn both in time and frequency domain
can be drawn in frequency domain with some restrictions
⇒ The logic function implemented by the following circuit at the terminal OU
P NOR Q
P NAND Q
P OR Q
P AND Q
⇒ Which of the following is not used as a microwave mixer or detector?
PIN diode
Crystal diode
Schottky barrier diode
Backward diode
⇒ A noiseless 3 kHz channel can't transmit binary bit at the rate
12000 bps
1000 bps
6000 bps
3000 bps
⇒ The number of protons in a copper atom are
2
9
11
29
⇒ In the given figure reflection coefficient at loa
0.6
-0.6
0.4
-0.4
⇒ A magnetron has a cylindrical cathode surrounded by an anode structure having cavities opening into interaction space by means of slots
TRUE
FALSE
⇒ If frames are repeated at 60 Hz and each frame has 525 lines, the time for scanning one horizontal line (for progressive scanning and no interlacing) is about
320 μs
32 μs
3.2 μs
0.32 μs
⇒ The standard FORTRAN exponential form of decimal number - 0.000000023 is
2.3 E - 8
-2.3 E - 8
2.3 E - 7
-2.3 E - 7
⇒
Match the following:
List I (Circuit) | List II (Characteristics) | ||
---|---|---|---|
A. | Darlington pair | 1. | uses pnp and npn transistors used as power amplifier |
B. | CB amplifier | 2. | Voltage gain nearly 1 and high input impedance |
C. | Cascade amplifier | 3. | low input impedance used for high frequency isolation |
A-1, B-2, C-3
A-2, B-3, C-1
A-2, B-1, C-3
A-3, B-1, C-2
⇒ If f(t) is an even function, the coefficients F_{n} in the exponential form of Fourier series
are real
are imaginary
are complex
may be real or imaginary
⇒ For addition and subtraction operations, phasors
must be represented in polar form
must be represented in rectangular form
may be represented in any form
none of the above
⇒ The most commonly used logic family is
ECL
TTL
CMOS
PMOS
⇒ Typical value of power consumption of TV transmitter is
0.5 kVA
2 kVA
50 kVA
1000 kVA