| 1. | The induction coil was first designed by Nicholas Callan in 1836.
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| 2. | I'll try to do it with the induction coil.
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| 3. | For this reason, induction coils were called spark coils.
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| 4. | The induction coil was the first type of electrical transformer.
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| 5. | The two induction coils in proximity combine to form an electrical transformer.
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| 6. | This approach employed large circular induction coils, that no longer needed ground connections.
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| 7. | :The induction coil also works by induction.
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| 8. | Induction coils, ring-wound resistance heaters, or gas flames are common methods.
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| 9. | By the 1860s, the induction coil was becoming a prominent instrument of physics research.
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| 10. | He collaborated in the development of an induction coil, later improved by Heinrich Ruhmkorff.
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