ECE - Questions and solutions set-5
Electronics and communication Engineering Questions and solutions set-5
Question:-
Option (A)
x y z
Option (B)
x Å y Å z
Option (C)
x + y + z
Option (D)
`x+`y+z
Correct Option:
D
Question Solution:
__ _ _
f = xy + xy + xy + xyz
_ _
By K – Map f = x + y + z
Question:-
Option (A)
4 f_{0}
Option (B)
6 f_{0}
Option (C)
10 f_{0}
Option (D)
12 f_{0}
Correct Option:
A
Question Solution:
F_{L} = 4 f_{0}
F_{u} = 6 f_{0}
F_{d} = 2 f_{0}
so here k=f_{u}/f_{d}=3
f_{s} = 2f_{u}/k= 2.(6f_{0}/3)=4f_{0}
Question:-
Option (A)
1.36 volt
Option (B)
3.5 volt
Option (C)
2.5 volt
Option (D)
2.8 volt
Correct Option:
A
Question Solution:
I_{C} = ((V_{CC} - V_{CE}) / R_{C})) = 1 mA
\ 10-V_{CE} = 6.8 Þ V_{CE} = 3.2 volt
(v_{0}/v_{i}) = ((V_{CC}-V_{CE}) / VT) = ((10-3.2) / V_{T}) = (v_{0}/5mv)
So , v_{0} = ((6.8 x 5) /25) = 1.36 volt
Question:-
Option (A)
Linear, Time invariant and Non-Causal
Option (B)
Linear, Time variant and Non-Causal
Option (C)
Non linear, time invariant & Causal
Option (D)
Non linear, time variant & Non-causal
Correct Option:
B
Question:-
Option (A)
e^{-4}
Option (B)
e^{-2√2}
Option (C)
e^{-√2}
Option (D)
e^{-1}
Correct Option:
C
Question:-
Option (A)
11100111
Option (B)
11100100
Option (C)
11010111
Option (D)
11011011
Correct Option:
A
Question Solution:
Just Find the values in 2’s complement representation.