Date: Thu, 26 Aug 2010 12:44:02

Author: Art Fovargue

Subject: Fw: PASCO charge-to-mass ratio apparatus

Post:

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the Pasco manual says AC or DC


Art Fovargue
James Madison University

----- Original Message -----=20
From: David Griffith=20
To: tap-l@lists.ncsu.edu=20
Cc: Ann Hanks=20
Sent: Thursday, August 26, 2010 12:07 PM
Subject: [tap-l] PASCO charge-to-mass ratio apparatus


Greetings,

PASCO has an apparatus that allows students to measure the =
charge-to-mass
ratio of electrons (SE-9638). It uses a 6.3 volt AC power supply to heat =
the
electron source.

The question is this: Does it have to be AC, or could a DC power supply =
be
used to heat the electron source?

Please let me know what you think. Thanks.

Dave Griffith
************
Technical Writer
PASCO scientific
10101 Foothills Blvd.
Roseville CA 95747-7100 USA
Phone: (800) 772-8700 x 302 toll free in USA
Phone: (916) 786-3800 x 302
Fax: (916) 786-5089
e-mail: griffith@pasco.com
Web-site: www.pasco.com
************


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the Pasco manual says AC or =
DC


Art FovargueJames Madison=20
University
----- Original Message -----=20
From: David =
Griffith=20

To: tap-l@lists.ncsu.edu
Cc: Ann=20
Hanks
Sent: Thursday, August 26, 2010 12:07 PM
Subject: [tap-l] PASCO charge-to-mass ratio =
apparatus
Greetings,PASCO has an apparatus that allows =
students to=20
measure the charge-to-massratio of electrons (SE-9638). It uses a =
6.3 volt=20
AC power supply to heat theelectron source.The question is =
this:=20
Does it have to be AC, or could a DC power supply beused to heat the =

electron source?Please let me know what you think. =
Thanks.Dave=20
Griffith************Technical WriterPASCO =
scientific10101=20
Foothills Blvd.Roseville CA 95747-7100 =
USAPhone: (800)=20
772-8700 x 302 toll free in USAPhone: (916) =
786-3800 x=20
302Fax: (916) =
786-5089e-mail: =20
griffith@pasco.comWeb-site: =
www.pasco.com************

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From tap-l-owner@lists.ncsu.edu Thu Aug 26 12:44:35 2010

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