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Solar panel information

Hello all:

A colleague was able to rescue several solar panels used to keep VW car batteries charged when in transit to the dealership. They are place on the windshield and plugged into the car’s DC output (cigarette lighter). She wanted to use them on a unit on alternative energy sources with elementary children, probably connecting them to an electric motor to create a mobile. I am not sure it will work, though. It is rated 18.8 V and 170 mA. It will be even less on an iluminated classroom indoors. As you know, that is not a whole lot of current. I found a small $1 personal fan that uses two AA batteries and it does not work, probably because each battery should supply much more current than 170 mA.

Any ideas as to what we could use these panels for? Is there an inexpensive DC motor that runs on 170 mA?

As always, your insights are appreciated.

Wilson J. Gonzalez-Espada, Ph.D.
Asst Professor of Physical Science/Science Education
School of Physical and Life Sciences
Arkansas Tech University
1701 N. Boulder Ave. (McEver Hall)
Russellville, AR 72801
(479) 968-0293
(479) 964-0837 fax

---------- Original Message ----------------------------------
From: Herbert H Gottlieb <herbgottlieb@JUNO.COM>
Reply-To: Forum for Physics Educators <PHYS-L@list1.ucc.nau.edu>
Date: Wed, 16 Jun 2004 07:56:05 -0700

The New York State Department of Education prepares yearly examinations
in
physics for its high school students. Back copies of past examinations,
together with answer keys, can be downloaded from the internet
by clicking on:

http://www.nysedregents.org/testing/scire/regentphys.html for exams given
in years 2001-2004

and clicking on
http://www.nysedregents.org/testing/scire/arcphys.html for exams given
in years 1997-2001.

Herbert Gottlieb
---
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