| 1. | This gives a net polarization that is parallel to the external field.
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| 2. | Then, the external field is reversed and starts to demagnetize the magnet.
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| 3. | When the core is weakly permeable, the external field is less attracted.
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| 4. | This is known as the " external field effect " ( EFE ).
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| 5. | Boltzmann subsequently generalized his distribution for the case of gases in external fields.
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| 6. | To an external field, the core is alternately weakly permeable and highly permeable.
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| 7. | This delay corresponds to a hysteresis response of the polarization to the external field.
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| 8. | Sources are external fields, fields that contribute to the action, but are not dynamical variables.
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| 9. | This magnetization as a function of the external field is described by a hysteresis curve.
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| 10. | One day, all power to the ship is knocked out, caused by an external field.
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