Electronics and Communication Engineering - Networks Analysis and Synthesis

46.
The voltage of single phase supply to residential consumers in India is
400 V
230 V
2.2 kV
11 kV
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
Power factor of the following circuit will be unity
inductance
capacitance
resistance
both (a) and (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
In the transformer shown in figure, the inductance measured across terminal 1 and 2 was 4 H with terminals 3 and 4 open. It was 3H when terminals 3 and 4 are short circuited. The coefficient of coupling is
1
0.707
0.5
indeterminate due to insufficient data
Answer: Option
Explanation:
No answer description is available. Let's discuss.

49.
The time constant of the network shown in figure is, when switch is closed.
2RC
RC/2
none
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
For an ideal transformer
only Y parameter exist
only Z parameter
Z, Y both exist
neither Z parameter nor Y parameter exist
Answer: Option
Explanation:
No answer description is available. Let's discuss.