JermaineAndDeniseToolsAndTechFindings

About

Here you will find the findings of our small research of measuring various objects with the multimeter.

BY:
- Jermaine van der Kolk
- Denise Nedermeijer

Findings

Apple (Granny Smith):
(ON 2000K)
1350 op binnenkant
130 op buitenkant

Apple seems less resistant on the outside, which seems strange since the inside is more wet.

Potlood:
(0N 2000K)
Large surface: 500
Small surface: 0.60

The smaller the surfance the less resistant GRAPHITE becomes.

Metal wire cloth:
(ON 2000K)
Large surface: 300
Small surface: 003

Rubbing it changes the resistance.

Copper
(ON 2000K)
0.09

Key
(ON 2000K)
0.02

Key ring
(ON 200)
0.09

Silver ring
(ON 200)
0.09

Silver bracelet
(ON 200)
04.00

The curious thing was that the bracelet was more resistant than the silver ring, despite being the same material. After a small back and forth with the teacher, we deduced the difference due the oxidation of the silver. The silver ring was recently cleaned while the bracelet was not.