Previous in Forum: Transformer Inductance   Next in Forum: Instrument/Electrical
Close
Close
Close
7 comments
Rate Comments: Nested
Anonymous Poster

Current and Frequency

10/01/2007 10:15 AM

What is the relation between current and frequency?

Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Active Contributor

Join Date: Apr 2007
Posts: 19
#1

Re: Current and Frequency

10/01/2007 10:27 AM

There is no relationship until you turn the switch on!

Reply Score 1 for Good Answer
Commentator
Egypt - Member - Ahmad Samak

Join Date: Sep 2007
Location: Alexandria, Egypt
Posts: 86
Good Answers: 1
#2
In reply to #1

Re: Current and Frequency

10/01/2007 7:05 PM

Reply
Guru
United States - Member - New Member Engineering Fields - Power Engineering - New Member

Join Date: Sep 2006
Location: California, USA, where the Godless live next door to God.
Posts: 4665
Good Answers: 804
#3

Re: Current and Frequency

10/01/2007 7:17 PM

Actually, there is no direct relationship even then. Current is related to load, frequency is only related to supply if there is no load. If there is a load, there is a relationship between current and frequency, but it is still dependent upon a myriad of other factors so it is essentially meaningless to discuss only those two entities together.

__________________
** All I every really wanted to be, was... A LUMBERJACK!.**
Reply
Anonymous Poster
#4

Re: Current and Frequency

10/01/2007 7:31 PM

Inductive reactance( XL) is the resistance in a circuit due to inductance.The formula is 2 Pi*F*L, where F=Frequency, and L= Inductance.The current thru the inductor depends on the supply voltage and frequency, as well as other components in the circuit,the type of circuit, and will vary accordingly.

If you are talking about a purely inductive circuit, it is very straighforward. I =E*R, where I =Current E = Voltage, and R= XL in Ohms.But remember, you have to determine XL first, using the first formula.

Does this help?

HTRN

Reply
Anonymous Poster
#5
In reply to #4

Re: Current and Frequency

10/01/2007 7:36 PM

EDIT for #4 :Used wrong operator.....should be I=E/R------ NOT E*R...

Sometimes I am slysdesxic...Sorry 'bout that...

HTRN

Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#6

Re: Current and Frequency

10/02/2007 5:21 AM
__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Reply
Power-User

Join Date: Jul 2007
Location: The cigarette-stained drunkard living in the cardboard box outside Marks & Sparks delivery entrance, Eastgate Shopping Centre, Basildon.
Posts: 487
#7

Re: Current and Frequency

10/03/2007 8:42 AM

What in, Mate, a capacitor or an inductor?

In a capacitor, I = V/(2ΠfC)

In an inductor, I = V*(2ΠfL)

Is that what you want?

__________________
Essex jobs for Essex yobs! <Burp>.
Reply
Reply to Forum Thread 7 comments

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

Anonymous Poster (2); greglynch (1); JRaef (1); PWSlack (1); Samak (1); Stinky Pete (1)

Previous in Forum: Transformer Inductance   Next in Forum: Instrument/Electrical

Advertisement