After the students have recognised that there are also
conducting liquids, namely aqueous solutions of electrolytes, the
question whether Ohm's Law is also valid for them is to be
answered.
The experimental results affirm that this is true. The students
should be subsequently informed that, however, this is
not the case for all solutions of electrolytes.
Prepare an aqueous solution of copper sulphate and examine the
relationship between voltage and current when current passes
through it.
| Materiallist (Excerpt) |
Product |
Amount |
|
Power supply 0...12 V DC/ 6 V, 12 V AC, 230 V
|
13505-93
|
1
|
|
Multi-range meter, analogue
|
07028-01
|
2
|
|
On-off switch module, SB
|
05602-01
|
1
|
|
Interrupted connector module, SB
|
05601-04
|
2
|
|
Water, distilled 5 l
|
31246-81
|
1
|
|
Junction module, SB
|
05601-10
|
2
|
|
Angled connector module with socket, SB
|
05601-12
|
2
|
|
Copper-II sulphate,cryst. 250 g
|
30126-25
|
1
|
|
Straight connector module, SB
|
05601-01
|
1
|
|
Angled connector module, SB
|
05601-02
|
2
|
|
Trough, grooved, w/o lid
|
34568-01
|
1
|
|
Emery paper, medium, 5 sheets
|
01605-02
|
1
|
|
Alligator clips, bare, 10 pcs
|
07274-03
|
1
|
|
Connecting cord, 32 A, 500 mm, red
|
07361-01
|
2
|
|
Connecting cord, 32 A, 500 mm, blue
|
07361-04
|
2
|
|
Connecting cord, 32 A, 250 mm, red
|
07360-01
|
2
|
|
Connecting cord, 32 A, 250 mm, blue
|
07360-04
|
2
|
|
Copper electrode 76x40 mm
|
45212-00
|
2
|
|
Spoon,w.spatula end,18 cm,plastic
|
38833-00
|
1
|
PHYWE on YouTube | contact form | contact sales worldwide | service hotline
