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In the design of a three-phase induction motor. The Inside Diameter of rotor laminationΒ can be calculated as
π«i = π«r - π«ππππ ππ πΊπππππ πΊπππ - π«ππππ ππ πͺπππ
π«π = π«π β π(π«ππππ ππ πΉππππ πΊπππ + π«ππππ ππ πΉππππ πͺπππ)
π«π = π«π + π(π«ππππ ππ πΉππππ πΊπππ+π«ππππ ππ πΉππππ πͺπππ)
None of these