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Hi all
Today's physics lab was using the Pasco field mapper kits to map the =
Electric field and lines of equipotential.
Okay so my students were given a point charge with a guard ring aroun=
d it. It just wouldn't seem to work. =20
One problem was that the potential difference on the guard ring wasn'=
t constant. The farther you got from the point where the electrode w=
as connected, the lower the potential difference got. Shouldn't it b=
e the same?
What's going on?
Tina (user error...lots of it)
Tina Fanetti
Physics Instructor
Western Iowa Technical Community College
4647 Stone Ave
Sioux City IA 51102
712-274-8733 ext 1429