Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
Okay
I have this piece of equipment. Its a board with a bunch of wire wra=
pped around a wooden stick. Each coil of wire is a different length,=
thickness or material. I believe the purpose of this board is to sh=
ow how resistance depends on resistivity of the material, length and =
cross-sectional area.
Now my question is this..
1. How do I write a lab activity to have students experimentally sho=
w what R is? I was thinking of just having them use Ohm's law and se=
nd a fixed potential difference through the wire. THen they could ju=
st measure the current using a multimeter. (not quite sure where to =
measure current but I think I can figure that out)
2. Now I asked some of my electronics students (dumb of me) what the=
y thought. They are convinced I will blow the power supply or melt t=
he wires. So how do I do this so that I don't wreck it. =20
3. Does anyone have a similair lab? I remember doing something simi=
liar as undergraduate but apparently I had a bonfire with my lab writ=
e-ups.....
Thanks
tina
Tina Fanetti
Physics Instructor
Western Iowa Technical Community College
4647 Stone Ave
Sioux City IA 51102
712-274-8733 ext 1429