parallel inductance

Discussion in 'Homework Help' started by bujak18, Jan 20, 2009.

1. bujak18 Thread Starter Active Member

Nov 12, 2008
49
0
what is the inductance of a 5-mH inductor and a 7-mH inductor connected in parallel?

need exact answer in SIMPLE TERMS if possible!!!

thanks
BUJAK18

2. KL7AJ AAC Fanatic!

Nov 4, 2008
2,047
295

Assuming there is no MUTUAL inductance, the inductance of parallel inductors is the same as for parallel resistors: 1/(1/L1 + 1/L2)

Eric

3. bujak18 Thread Starter Active Member

Nov 12, 2008
49
0
so the answere is the formula?

4. mik3 Senior Member

Feb 4, 2008
4,846
63
Yes the answer is the formula if the problem does not say anything about mutual inductance.

5. studiot AAC Fanatic!

Nov 9, 2007
5,005
515
The answer is that you are expecting us to do your homework for you.

Nor am I impressed by your short form English.

You received a full numeric answer to your last homework question, but I see no thanks, only complaint.

If you are seriously studying basic circuits you could work out some of the arithmetic for yourself. This Forum is entitled 'Homework - Help', not 'Do my Homework For Me'

6. Dave Retired Moderator

Nov 17, 2003
6,960
145
For two inductances in parallel it is, like resistances, "product over sum".

As for general conduct, I concur with studiot's sentiments. Buck up.

Dave

7. italo New Member

Nov 20, 2005
205
1
Think about it what happens if you parallel capacitor they add right ? know invert that. and you got the unswer simple isn't. forget about strays these is homework.