Question: A 3 - phase, 3 . 5 - kW , Y - connected, 4 8 0 - V ( line ) , 6 0 -

A 3-phase, 3.5-kW, Y-connected, 480-V(line),60-Hz,4-pole squirrel-cage induction motor operates at full load with a slip of 5%.
The frequency of the rotor current under this operating condition is most nearly,

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