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This virtual laboratory suggests the case of an oscillatory reluctant motor used in an electrical razor. This last application illustrates the interest of energy (co-energy) concepts in determining the couple, Laplace's law () not being applied on thid type of motor.

• prior knowledge:
• level: cycle 2
• auxiliary resources:
• estimated time :
• author: Damien Grenier
• realisation: Sophie Labrique
• translation: Bogdan Dumitrescu, Sergiu Ivanov

Download here the printable version.

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