| RefNo | PP/24/19 |
| Previous numbers | PP/56/20 |
| Level | Item |
| Title | Paper, 'On an instrument for indicating and measuring difference of phase between E M F and current in any alternating current system' by Philip Cardew |
| Creator | Cardew; Philip (1851-1910); English army officer; electrical engineer |
| Date | 1894 |
| Description | Cardew writes: 'If the periodic time of an alternating E. M. F be T, and if, owing to the presence of capacity or self-induction, or both in the circuit, the current passes through the value 0 at times differing from the times of passage of the E. M. F. through the same value by t, the electrical power will be V × C × cos (2πt/T), where V indicates the effective volts and C the effective current.'
Annotations in pencil and ink.
Subject: Electricity
Received and read 21 June 1894. Communicated by Lord Kelvin [John William Strutt].
A version of this paper was published in volume 56 of the Proceedings of the Royal Society as 'On an instrument for indicating and measuring difference of phase between E. M. F. and current in any alternating current system'. |
| Extent | 4p |
| Format | Manuscript |
| PhysicalDescription | Ink and graphite pencil on paper |
| Digital images | View item on Science in the Making |
| AccessStatus | Open |
| RelatedMaterial | DOI: 10.1098/rspl.1894.0103 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA6090 | Strutt; John William (1842 - 1919); 3rd Baron Rayleigh; experimental and mathematical physicist | 1842 - 1919 |