Electronics and Communication Engineering - Networks Analysis and Synthesis

1. 

A dielectric does not have leakage current.

A. True
B. False

Answer: Option B

Explanation:

All dielectrics have some leakage current.


2. 

A series RLC circuit has a resonant frequency of 1000 Hz. The maximum voltage across C is likely to occur at a frequency of about

A. 1000 Hz
B. 2000 Hz
C. 1025 Hz
D. 975 Hz

Answer: Option D

Explanation:

Maximum voltage across capacitance occurs at a frequency slightly less than resonant frequency.


3. 

The resistance of a 230 V, 100 W lamp is

A. 529 Ω
B. 2300 Ω
C. 5290 Ω
D. 23 Ω

Answer: Option A

Explanation:


4. 

System function , For a signal sin 2t, the steady state response is

A. 1/8
B.
C. 0
D. 8

Answer: Option C

Explanation:

.


5. 

A network has two branches in parallel. One branch contains impedance Z1 and the other branch has impedance Z2. If it is fed from an ac voltage V of frequency f, the current through Z1 depends, on

A. V, Z1, Z2
B. V, Z1
C. Z1, Z2
D. V, Z1, f

Answer: Option D

Explanation:

In parallel branches, the current through any branch depends only on voltage, impedance and frequency only.


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