| 摘要 |
PROBLEM TO BE SOLVED: To obtain a switch device with small energy loss by efficiently utilizing a magnetic field generated by a coil as an electromagnetic repulsive force. SOLUTION: Electromagnetic repulsive force F is efficiently generated, and energy loss is reduced by making the outer diameterϕ1 of a ring-shaped coil approximately 5-15 times the thickness h2 of the same, and making the outer diameterϕ1, 2-3 times the inner diameterϕ2.
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