Home Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

  Register / Login

Ah, thanks.

That calculator unfortunately, allows the calculation outside the boundaries of the equation's limits.

The equation is useful and accurate only for frequencies where the skin depth is a small fraction of the radius of the conductor. Once the curvature of the wire becomes significant with respect to the skin depth, that equation is not correct. That equation is derived from the penetration depth of a TEM wave normal to the surface of an infinite thickness conductor, not a round wire.

Once the calculated skin depth from that equation approaches 10% of the wire radius, it becomes inaccurate. It is not useful for normal wire sizes and audio frequencies.

Cheers, John



This post is made possible by the generous support of people like you and our sponsors:
  Parts Connexion  


Follow Ups Full Thread
Follow Ups


You can not post to an archived thread.