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I'm trying to calculate the resistance of a circular resistor with the following specifications:

Doped Silicon with a carrier concentration of 1.6x1025 m-3 (sheet resistance ~ 0.5 ohms/square)

Radius = 200 microns

thickness = 5 microns.

I know the general formula for calculating resistance of a standard serpentine configuration:

Resistance = (resistivity/thickness) x Length/Width

= sheet resistance x (Length/Width)

However what is the formula for a circular resistor?

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# Resistance of a Circular resistor

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