AC is the magnitude of sinosudial-wave but we use cose value to determine power

AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of sine value.

Question Posted / pradyumna chandra panda

2 Answers
4242 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of si..

Answer / pradyumna chandra panda

Current leg or lead behind or ahead the voltage from maximum value ( from 90°) of alternative Qnty is called legging or leading power factor which is equal to rest valve ( 90° - legg / + lead) of sine ie. legging 36° of cose value ( .8 ) is equal to rest value of sine 54° (90°-36°) ie .8 Therfore we indirectly use sine value by appling cose value. Is this correct ? plz give your openion.

Is This Answer Correct ?

5 Yes

0 No

AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of si..

Answer / sarmadahmed

SINE and COSINE are both sinusoidal. They essentially have same properties but different values at different time but both are sinusoids and every wave having similar properties will be a sinusoid too. And the cosine term is there because of some trigonometric calculations, it could be sine too. Have a look at power triangle and you'll get the answer.

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

1.Difference between vcb and Acb and partes. 2.Difference between STS and ATS.

2 Answers

A jet of fluid strikes a plate What was the force required to counter it?

0 Answers

what you mean ct ratio? why use 400/5a,200/5a,150/5a ?

1 Answers

what happen when transformer connect on dc supply.

5 Answers

what is the differation bewreen kwh & fundamental kwh in electronic trivector meters

0 Answers

IN MCCB AND MCB TERMINATIONS ARE IN-COMING ON TOP AND OUT GOING ON BOTTOM,IF WE TERMINATED INTERCHANGED TOP AND BOTTOM ITS WORKS?

2 Answers

1.What is the maximum transmission voltage in india & where it is located? 2.more information about indian power scenario.

4 Answers

why ligthing is not available in switch yards?

1 Answers

wat is the first thing dat is needed, 2 lay a cable in some area??

0 Answers

what kinds of Transformer oil grade is better for power transformer ?

0 Answers KSRM Steel Plant,

why we use the fuse in only one wire? althrough in ac current the current flows in both directions. why the neutral wire can be taken half the magnitude of phase wire while same current returns from neutral wire?

2 Answers Bhel,

Why temperature rise test is conducted in bus bars and Isolators?

5 Answers Areva,

For more Electrical Engineering Interview Questions Click Here