Efficiency measurement using a motor–dynamo module

doi:10.1088/0031-9120/44/6/012

Efficiency measurement using a motor–dynamo module

Pun-hon Ng et al 2009 Phys. Educ. 44 639-643 doi: 10.1088/0031-9120/44/6/012

PDF (309 KB) | References

Pun-hon Ng¹, Siu-ling Wong² and Se-yuen Mak¹
¹ Department of Curriculum and Instruction, Faculty of Education, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR
² Faculty of Education, The University of Hong Kong, Pokfulam Road, Hong Kong SAR
E-mail: phng@cuhk.edu.hk, aslwong@hkucc.hku.hk and symak@cuhk.edu.hk

Abstract. In this article, we describe a simple method which can be used to measure the efficiency of a low power dc motor, a motor-converted dynamo and a coupled motor–dynamo module as a function of the speed of rotation. The result can also be used to verify Faraday's law of electromagnetic induction.

Print publication: Issue 6 (November 2009)
Received 9 July 2009, in final form 23 July 2009

Post to CiteUlike |

Post to Connotea |

Post to Bibsonomy

Efficiency measurement using a motor–dynamo module

Find related articles

Article options

Authors & Referees