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ERIC Number: EJ1049049
Record Type: Journal
Publication Date: 2015-Jan
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0031-921X
Teaching the Factors Affecting Resistance Using Pencil Leads
Küçüközer, Asuman
Physics Teacher, v53 n1 p38-41 Jan 2015
The aim of this paper is to provide a way of teaching the factors that affect resistance using mechanical pencil leads and the brightness of the light given out by a light bulb connected to an electrical circuit. The resistance of a conductor is directly proportional to its length (L) and inversely proportional to its cross-sectional area (A). Additionally, the resistance depends on the type of conductor. Resistance R can be thus be expressed as R = ?L/A, where ? is the resistivity of the conductor.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail:; Web site:
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