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Assertion (A): A 4 input variable logic circuit can be implemented using a 8 : 1 multiplexer. Reason (R): When a multiplexer is used as a logic function generator, the logic design is simple. | |
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 [Correct Answer] |
C. | A is true, R is false [Wrong Answer] |
D. | A is false, R is true [Wrong Answer] |
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Explanation:-
Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
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ring modulator
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⇒ The bidirectional pattern of a broadside array can be converted into unidirectional by
maintaining the distance of λ/4 between the elements
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installing an identical array behind the main array at distance λ/4 and exciting it by current leading in phase by 90°
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⇒ A two-input OR gate is designed for positive logic. However, it is operated with negative logic. The resulting logic operation will then be
OR
AND
NOR
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unit impedance
infinite impedance
zero impedance
none of the above
⇒ For a paramagnetic material, susceptiblity increases with increasing temperature.
TRUE
FALSE
⇒ The relation AD - BC = 1 where A, B, C, D are transmission parameters of a network is valid for
every network
passive but not reciprocal network
passive and reciprocal network
both active and passive networks
⇒ Which is known as flash converter?
Weighted resistor D/A converter
Parallel A/D converter
Stair step A/D converter
Up-down counter type A/D converter
⇒ Number of cards read per minute by a card reader may be of the order of
20
1
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⇒ The minimum gate source voltage that creates the n-type inversion layer is called
cut off voltage
on voltage
threshold voltage
zener voltage
⇒ Figure represen
Diode rectifier
Schottky diode
Varistor
None of the above
⇒ In waveguides the existing waves are
TE only
TM only
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⇒ The n state variables can be considered as n components of a state vector.
TRUE
FALSE
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inductance
L and C in parallel
capacitance
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⇒ If ROC of x[n] is R_{1} then ROC of a^{n} x[n] is
R_{1}a
R_{1}/a
a/R_{1}
R_{1} + a
⇒ The manufacturing technique used to manufacture strip type transmission line is
photoetching technique
oxidation technique
cladding
epitaxial
⇒ 1101_{2} - 1001_{2} =
1000
100
10
1
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0
1
2
3
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Tuned modulator
Class B, RF amplifier
Class C, audio amplifier
All of the above
⇒ A current of 3.25 A is flowing through a resistance of 34.98 Ω. The voltage drop across resistance to the appropriate number of significant figures is
113.685 V
113.68 V
113.6 V
114 V
⇒ In AM, the modulation envelope has a peak value double the unmodulated carrier level, when the modulation is
0.25
0.33
0.5
1
⇒ Which of following digital modulation technique?
ASK
FSK
PSK
All
⇒ The speed at which axial electric field due to signal advances in a TWT is equal to
speed of light
(speed of light) (helix pitch helix circumference)
(speed of light) (helix circumference helix pitch)
(speed of light) (helix pitch) (helix circumference)
⇒ Consider the following expression for the driving point imped
2 and 4
1 and 3
1 and 4
2 and 3
⇒ In a Hurwitz polynomial
all coefficients are non-negative
both the odd and even parts have roots on jω axis
the continued fraction expansion is the ratio of odd to even parts of a Hurwitz polynomial yields all positive quotient terms
all of the above
⇒ The derating factor for a BJT transistor is about
0.5 mW/°C
2.5 mW/°C
10 mW/°C
25 mW/°C