Electronics and Communication Engineering - Networks Analysis and Synthesis

6.
In figure, the power associated with 3 A source is
36 W
24 W
16 W
8 W
Answer: Option
Explanation:

Voltage across 4Ω resistance = source voltage = 8V. Power = 8 X 3 = 24 W.


7.
In the circuit shown in figure the inductor current and capacitor voltage are given at a time t. At this instant i is __________ A and is __________ A/sec.
-5 A, 10 V
5 A, 50 V
2.5, 25
0, ∞
Answer: Option
Explanation:

.


8.
In the Bode plot, of , the phase at w = 15 is
45
40
36.8
Answer: Option
Explanation:

.


9.
The inductance of an air cored coil is 2 H. The number of turns is made 3 times, all other quantities remaining the same. The new value of inductance will be 2 2
6 H
18 H
Answer: Option
Explanation:

Inductance a N2.


10.
j6 =
j
j2
j3
- j
Answer: Option
Explanation:

j6 = j4 . j2 = j2 because j4 = 1.