In my studying I came across a different version of Poiseuille's Law than I'm used to seeing.
While I am used to seeing it in this form:
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I just saw a problem easily solved by using the form below, which is showing a "resistance to flow" value 'R' rather than a flow rate 'Q':
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How can one of them...
Different Versions of Poiseuille's Law?
While I am used to seeing it in this form:

I just saw a problem easily solved by using the form below, which is showing a "resistance to flow" value 'R' rather than a flow rate 'Q':

How can one of them...
Different Versions of Poiseuille's Law?