While reading Tektronix's "ABCs of Probes" manual, I was told that "there's an inductance associated with the ground lead [of an oscilloscope probe]. This ground-lead inductance increases with increasing lead length."
However, according to the inductor sizing equation, length is inversely proportional to inductance, so longer ground leads should DECREASE inductance, right?
These two statements contradict so I must be missing something. I appreciate any help.
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ABCs of Probes Primer by Tektronix (I'm referring to page 27, right column)
http://www.tek.com/Measurement/App_Notes/A.../60W_6053_8.pdf
Inductor Sizing Equation on AllAboutCircuits.com
http://www.allaboutcircuits.com/vol_5/chpt_1/6.html
However, according to the inductor sizing equation, length is inversely proportional to inductance, so longer ground leads should DECREASE inductance, right?
These two statements contradict so I must be missing something. I appreciate any help.
-------------------
ABCs of Probes Primer by Tektronix (I'm referring to page 27, right column)
http://www.tek.com/Measurement/App_Notes/A.../60W_6053_8.pdf
Inductor Sizing Equation on AllAboutCircuits.com
http://www.allaboutcircuits.com/vol_5/chpt_1/6.html