Electronics and Communication Engineering - Networks Analysis and Synthesis

21.
A system function is . The system is at rest for t < 0, i(t) = 2u(t) where u(t) is an unit step, V(t) for t > 0 is given by
e-6t
2e+6t
2e-6t
Answer: Option
Explanation:

V(t) = 2e-6t.


22.
Discharge breakdown in insulators is due to voids.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

23.
If a coil has diameter 'd' number of turns 'N' and form factor 'F' then the inductance of coil is proportional to
N2dF
Nd2F
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
In figure, the switch has been closed position for a long time. At t = 0 the switch is opened. At t = 0+, the current ic is
I
0
infinite
Answer: Option
Explanation:

Capacitor behaves as short-circuit at t = 0+.


25.
For the port shown, the short circuit network function at port 2 is given by
s + 1/4
s + 4
4s + 1
s + 16
Answer: Option
Explanation:

If port 2 is short circuited then.

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