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ERIC Number: EJ1362502
Record Type: Journal
Publication Date: 2022-Sep
Pages: 2
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0031-921X
EISSN: EISSN-1943-4928
Available Date: N/A
Electromagnetic Waves and Poynting Vectors with Easy-to-Use Components
Morris, Steven L.
Physics Teacher, v60 n6 p496-497 Sep 2022
It is difficult for an instructor to just make up valid numbers for B[subscript x], B[subscript y], B[subscript z], E[subscript x], E[subscript y], and E[subscript z] in the creation of homework problems and test questions calculating the Poynting vector. In this paper, 25 examples are given of the electric and magnetic fields of electromagnetic waves, obeying the condition that the electric field is perpendicular to the magnetic field, and the condition that the magnitude of the electric field is equal to the magnitude of the magnetic field times the speed of light. These easy-to-use numbers lend themselves to the calculation of the Poynting vector, which leads to the calculation of energy density and other macroscopic quantities. A separate list is presented for the Gaussian CGS system of units.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://aapt.scitation.org/journal/pte
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
Author Affiliations: N/A