Electronics and Communication Engineering - Networks Analysis and Synthesis

1.
A series RLC circuit is supplied from a variable frequency ac source. The resonant frequency is ω0. The voltage across C is maximum at a frequency
equal to ω0
slightly less than ω0
slightly more than ω0
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
The maximum phase difference between the applied voltage and current in a RLC series current with finite values of R, L, C, and f can be
less than 90°
less than 45°
180°
30°
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
If figure, I = 2A if R = 20 Ω. When R = 10 Ω current I is
1 A
2 A
2.5 A
3 A
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
A phasor is
a line representing the magnitude and direction of an alternating quantity
a line which represents the magnitude and phase of an alternating quantity
an instrument used for measuring phases of an unbalanced 3-phase load
a coloured tag or band for distinguishing between different phases of a 3-phase supply
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
The phase difference (jω - p1 )
phasor directed from p1 to jω
phasor directed from origin to p1
phasor directed from origin to jω point
phasor directed from jω to p1
Answer: Option
Explanation:
No answer description is available. Let's discuss.