×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

#### Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

# DC vs. AC magnetic waves

## DC vs. AC magnetic waves

(OP)
Is there any difference as to how a DC magnetic wave effect the relative permeability of an alloy, compared to an AC magnetic wave?

### RE: DC vs. AC magnetic waves

Yes

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

(OP)
in which way?

### RE: DC vs. AC magnetic waves

It depends on the magnetic properties of the alloy, and the frequency and intensity of the field.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

### RE: DC vs. AC magnetic waves

All else equal, DC relative permeability is always bigger than AC perm.

### RE: DC vs. AC magnetic waves

"DC magnetic wave effect"? In what sense?

### RE: DC vs. AC magnetic waves

If it's steady state (DC) there is no wave, there is no transient. Thus resistivity is unimportant to the magnetic field. For AC and transient fields there will be resistivity and skin effects.

Sounds like you need a basic physics course, try this, it's free:

https://ocw.mit.edu/courses/physics/8-02-physics-i...

----------------------------------------

The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

#### Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

#### Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!