Electronics and Communication Engineering - Networks Analysis and Synthesis

46.
For the wave shown in figure, the average value is
14.14 A
15 A
17.17 A
19.19 A
Answer: Option
Explanation:

Average value = 10 + 0.5 x 10 = 15 A.


47.
The dc voltage applied to an R-L series circuit is suddenly changed from V1 to V2. The expression for transient current is
either (a) or (c)
Answer: Option
Explanation:

The final steady state current is and transient term must depend on both V1 and V2.


48.
One ampere means the flow of
One coulomb each minute
One electron per second
One coulomb per second
One coulomb each hour
Answer: Option
Explanation:

As per definition one ampere means 1 coulomb per second.


49.
For the following circuit a source of V1(t) = e-2t is applied, then the resulting response V2(t) is given by
e-2t + e-t
e-t
e-t - e-2t
Answer: Option
Explanation:

.


50.
When R and C are connected in parallel, phase angle of Y is positive.
True
False
Answer: Option
Explanation:

I = YV. Since I leads V, phase angle of Y must be positive.