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Re: Alternating Current

On Fri, 29 Jan 1999, JACK L. URETSKY (C)1998; HEP DIVISION, ARGONNE NATIONAL LAB ARGONNE, IL 60439 wrote:

To Bob Sciamanda-
You misread me. Or, at least, you misquote me. Or, I spoke imprecisely.
If the length of me sample is .01 s, then my uncertainty in frequence is 100 Hz.


If f = 1/t , then isn't delta f = delta t/ t^2 (ignoring the
minus sign)?? So if the interval is .01 sec and can be controlled, say,
to within a millisecond, then we get delta f = .001/ (.01)^2 = 10 Hz,
which explains the frequency seen; 120 +- 10 Hz.


Mike Monce
Connecticut College