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The Royal Society: Science in the Making

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

Reference number: PP/24/19

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'.

Reference number
PP/24/19
Earliest possible date
1894
Physical description
Ink and graphite pencil on paper
Page extent
4 pages
Format
Manuscript

Creator name

Philip Cardew

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Citation

Philip Cardew, 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, 1894, PP/24/19, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pp_24_19/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, accessed on 12 December 2024

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https://makingscience.royalsociety.org/items/pp_24_19/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

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  • Proceedings Papers

    Dates: 1882 - 1894

    The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.

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