- #1
Gyroscope
Homework Statement
A disk with width b and radius a.
An element of resistance is:
[tex]dR=\rho \frac{2\pi r}{bdr}[/tex]
How do I integrate this?
Thanks in advance.
Resistance of a disk
- Thread starter Gyroscope
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- Disk Resistance
A disk with width b and radius a.
An element of resistance is:
[tex]dR=\rho \frac{2\pi r}{bdr}[/tex]
How do I integrate this?
Thanks in advance.
- #2
berkeman
Mentor
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- 17,384
I don't understand your volume element. You are trying to get the total resistance between what two places? A point on one edge of the disk to a point on the other side, or from the center out to the perimiter, or what?
- #3
Gyroscope
It's the sum of the resistances of each ring of the disk.