Electronics and Communication Engineering - Networks Analysis and Synthesis

21.
Which of the following is an I.S.I. symbol of cut-out power?
Answer: Option
Explanation:
No answer description is available. Let's discuss.

22.
If Fourier transform of f(t) is F(jω), then which pairs of time functions and Fourier transforms are matched
  1. f (t + 2) - ej F(jω)
  2. f (-0.5t) - 2F (-2jω)
  3. -
Select the answer using the following codes
1 and 2
1 and 3
2 and 3
1, 2 and 3
Answer: Option
Explanation:
No answer description is available. Let's discuss.

23.
In a power system, reactive power is necessary for
power transmission
stabilising the voltage level
counteracting the effect of reactance in the transmission system
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
A unit impulse voltage δ (t - b) is applied to an inductor with inductance L. The current through L is
δ (t - b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

25.
A periodic voltage has following values for equal time intervals changing suddenly from one value to next, 0, 5, 10, 20, 50, 60, 50, 20, 10, 5, 0, -5, -10 etc. then rms value of the waveform is
31 volt
32 volt
insufficient data
none
Answer: Option
Explanation:
No answer description is available. Let's discuss.