Electronics and Communication Engineering - Networks Analysis and Synthesis

41.
The network has 10 nodes and 17 branches. The number of different node power voltages would be
7
9
10
45
Answer: Option
Explanation:

Node pair voltage = number of node - 1.


42.
For the time domain response shown in figure the pole
lies in left half plane
lies on imaginary axis
lies along the positive real axis
may be complex or imaginary
Answer: Option
Explanation:

The response is unstable. Therefore pole is on positive real axis.


43.
Two capacitor of 1 F each are connected in parallel. Another 1 F capacitor is connected in series with the parallel combination. The total capacitance is
3 F
2 F
Answer: Option
Explanation:


44.
The realization of the term Ks yields
a resistance of value K ohms
a capacitances of value K farads
an inductance of value k farads
either (b) or (c)
Answer: Option
Explanation:

Impedance of inductance K is sK.


45.
If operator 'a' = 1 ∠120° then (1 - a2) =
1 ∠ - 30°
1 ∠ 30°
1 ∠ - 60°
1 ∠60°
Answer: Option
Explanation:

1 + a2 = - a = 1∠-60°.