|HP-Bench-Briefs-1980-01-02.pdf|| rise in the wire. Obviously, a wire is Average responding ac meters are
insensitive t o the ac signal's inexpensive and are fine for measur-
geometry. ing sine waves where high accuracy
is not required. But for non-
One limitation to this technique is sinusoids, only a true rms respond-
that ambient temperature adds to ing ac meter will do.
J""" - the heat produced by the ac signal.