| RefNo | PP/10/20/2 |
| Previous numbers | PP/42/20 |
| Level | Item |
| Title | Diagram, alternate current dynamo by John Hopkinson |
| Date | 1887 |
| Description | A small diagram showing Hopkinson's proposed dynamo. In the accompanying paper he writes 'to fix ideas, we will suppose the machine considered to have its magnet cores arranged parallel to the axis of rotation, that the cores are of uniform section, also that the armature bobbins have iron cores, so that we regard all the lines of induction as passing either through an armature coil, or else between adjacent poles entirely outside the armature. The sketch shows a development of the machine considered. The iron is supposed to be so arranged that the currents induced therein may be neglected.'
Subject: Physics / Electricity
A print of this diagram was published in volume 42 of the Proceedings of the Royal Society as 'Note on the theory of the alternate current dynamo'. |
| Extent | 1p |
| Format | Diagram |
| PhysicalDescription | Ink on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1887.0032 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8063 | Hopkinson; John (1849 - 1898); electrical engineer | 1849 - 1898 |