ECE - Questions and solutions set-15

Electronics and communication Engineering Questions and solutions set-15
Question:-
Option (A)
        x = (A + B) C + BD + ACD + E
Option (B)
        x =
Option (C)
        x =
Option (D)
        None of these
Correct Option:
D
Question Solution:
X =
        X =
        X =
        X =
        X =
Question:-
Option (A)
        be doubled
Option (B)
        be tripled
Option (C)
        become 4 times
Option (D)
        remains same
Correct Option:
C
Question Solution:
When level,
        M = 2
        i.e.2n = 21
        thenn = 1
        similarly for,M = 16
        i.e.2n = 24
        thenn = 4
        So, the relative BW will becomes 4 times.
Question:-
Option (A)
        11.1 MHz
Option (B)
        10 MHz
Option (C)
        33.3 MHz
Option (D)
        12.5 MHz
Correct Option:
B
Question Solution:
Tmin = tsetup + thold + tpd
         = (20 + 10 + 70)
         = 100 nsec
        For reliable operation,
        fmax =