Electronics and Communication Engineering - Networks Analysis and Synthesis

41.
The frequency at which maximum voltage occurs across the inductance in R-L-C series circuit is
Answer: Option
Explanation:
No answer description is available. Let's discuss.

42.
A series circuit has R = 5 Ω and C = 10 μF. At t = 0 it is switched on to a 10 V dc battery. The maximum current in the circuit is
2 A
1 A
106A
10 μA
Answer: Option
Explanation:


43.
In figure, the value of R should be
5 kΩ
50 kΩ
20 kΩ
10 kΩ
Answer: Option
Explanation:


44.
A practical Parallel resonant circuit has a coil in Parallel with a 0.14 μf capacitor. The coil has an inductance of 1 mH and a resistance of 10 ohms. The Q of the circuit is
1000
100
10
1
Answer: Option
Explanation:

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45.
An AC circuit has two branches in parallel. The current in one branch is 5 A. Then the current source
must be less than 5 A
must be more than 5 A
may be equal or more or less than 5 A
5 A
Answer: Option
Explanation:

5 A current may be (say) 3 + j 4A. The current in the other branch is x ± jy. The total current is (3 + x) + (4 ± y). This may be 5A or more or less.