# Moment of Inertia - Torus (about axis)

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Equation / Last modified by EmilyB on 2016/07/28 18:24
I =
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EmilyB.Moment of Inertia - Torus (about axis)
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The Moment of Inertia for a Torus about an axis passing through the center and perpendicular to the diameter is found using the following formula: I=m/4(4a^2+3b^2), where:

• m = mass
• a = radius
• b = cross-sectional radius

## References

The formula and equation for Moment of Inertia are from Wikipedia (https://en.wikipedia.org/wiki/List_of_moments_of_inertia).

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