Alternating Current And Voltage

Question: One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is
[A].

0°

[B].

45°

[C].

40°

[D].

none of the above

Answer: Option C

Explanation:

No answer description available for this question.

Question: The average half-cycle value of a sine wave with a 40 V peak is
[A].

25.48 V

[B].

6.37 V

[C].

14.14 V

[D].

50.96 V

Answer: Option A

Explanation:

No answer description available for this question.

Question: The average value of a 12 V peak sine wave over one complete cycle is

Question: If the peak of a sine wave is 13 V, the peak-to-peak value is

[A]. 6.5 V

[B]. 13 V

[C]. 26 V

[D]. none of the above

 

Answer: Option C

Question: A sine wave with a period of 4 ms is changing at a faster rate than a sine wave with a period of

[A].

0.0045 s

[B].

2 ms

[C].

1.5 ms

[D].

3,000 s

Answer: Option A

Explanation:

No answer description available for this question.

Question: A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of
[A].

25 kHz

[B].

12 kHz

[C].

18 kHz

[D].

1.3 MHz

Answer: Option B

Explanation:

No answer description available for this question.