This lesson covers the rotor resistance and geometry, focusing on the equations for bar resistance and end ring resistance. It explains how to calculate the resistance value for a cage, the impact of skewing on the length of the rotor bar, and the calculation of end ring resistance. The lesson also delves into the calculation of the effective resistance for the rotor mesh and the equivalent resistance per rotor mesh. It further discusses the weight of the rotor cage with respect to the winding and the calculation of the inner diameter of the rotor. The lesson concludes with a discussion on the window check equations and the complete rotor geometry.

- The resistance value for a cage can be calculated using the resistivity of the bar material, length of a single bar, and the area of the cross-sectional area of each bar.
- Skewing impacts the length of the rotor bar, which can be calculated using trigonometric equations.
- The end ring resistance can be calculated using the resistivity of the end ring material, length of the end ring, and the area of the cross-section of the end ring.
- The effective resistance for the rotor mesh can be calculated using Kirchhoff's Voltage Law (KVL).
- The equivalent resistance per rotor mesh can be calculated using the effective resistance of each bar of the rotor.
- The weight of the rotor cage with respect to the winding can be calculated using the density and volume of the rotor bars and

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