Five self-contained experiments in the Virtual Labs format — the single-phase transformer, the DC machine, the three-phase induction motor, the synchronous machine, and three-phase star/delta fundamentals. Each opens with an aim, the underlying theory and the real equations, a numbered procedure, a genuinely-computing interactive simulator, a marked self-assessment quiz and references. Every curve is solved live from the per-phase equivalent circuit using complex-impedance arithmetic, the universal torque equation, phasor construction and exact star/delta relations — nothing is pre-baked.