ERIC Number: EJ931203
Record Type: Journal
Publication Date: 2010-Nov
Pages: 7
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0031-9120
EISSN: N/A
Rotational Viscometers--A Subject for Student Projects
Kraftmakher, Yaakov
Physics Education, v45 n6 p622-628 Nov 2010
Three variants of the rotational viscometer employing a dc motor are considered. The viscometers are highly suitable for liquids of high viscosity, such as glycerol or oils (that is, for [eta] in the range 10-1000 mPa s). The set-ups are very simple and can serve as a first step to designing devices that are more complicated. Experimentation with the electrical motors used in the viscometers provides a deeper understanding of some of the fundamental laws of electricity and magnetism (Lorentz's force, Faraday's law of electromagnetic induction, and Lenz's law). (Contains 6 figures.)
Descriptors: Student Projects, Energy, Engines, Measurement Equipment, Motion, Physics, Science Instruction, Science Experiments
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A