| 摘要 |
FIELD: training aids. SUBSTANCE: invention refers to training aids and can be used for practical work in physics in laboratories of higher and medium special institutions to study and extend knowledge of physical laws. Training aid has solenoid connected to generator of harmonic voltage, mobile rod with indication coil and indicator, immobile indication coils, switch and register of electromotive force. EFFECT: expanded functional capabilities of aid. 7 dwg
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