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Electronics and Communication Engineering - Exam Questions Papers

Exercise : Exam Questions Papers - Exam Paper 2
16.
The following circuit can be represented as :
C
f(A, B, C) = (0, 1, 2, 3, 4, 5, 6, 7)
(A ⊕ B)C
C
Answer: Option
Explanation:

17.
A two port network is described by the relation
V1 = 2I1 + 3V2
I2 = - I1 + 2V2
Then Z-parameter of such network is
Answer: Option
Explanation:

18.
Find Y in the circuit below :
f1(E, F) = ∑(0, 1, 2, 3)
f2(A, B, E, F) = ∑(0, 1, 2, 3, 5, 6, 9)
f3(A, B, E, F) = ∏(4, 7, 8, 10, 11, 12, 13, 14, 15)
f2
f2
0
∑(0, 1, 2, 3, 5, 6, 9)
Answer: Option
Explanation:

19.
Calculate the stability factor and change in Ic from 25°C to 100°C for, β = 50, RB/RE = 250, ΔICO = 19.9 nA for emitter bias configuration
42.553, 0.85 μF
40.91, 0.58 μF
38.53, 0.85 μF
41.10, 0.39 μF
Answer: Option
Explanation:

20.
The star equivalent C1 C2, C3 of the delta network is respectively
Answer: Option
Explanation:

∴ .

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