A commercially available dry battery or
single cell is extremely suitable for this experiment on the
internal resistance of a source of voltage. It has an internal
resistance which is high enough to be measured well, and it
can be easily replaced if inattentiveness should cause it
to be destroyed by too long exposure to an overload.
The power supply is not suitable for
this determination of internal resistance because it is voltage
stabilised.
Connect resistances of various sizes in a circuit, then examine
the internal resistance of the voltage source
Ri by measuring its current I and
terminal voltage UT.
| Materiallist (Excerpt) |
Product |
Amount |
|
Multi-range meter, analogue
|
07028-01
|
2
|
|
On-off switch module, SB
|
05602-01
|
1
|
|
Socket module for incandescent lamp E10, SB
|
05604-00
|
2
|
|
Interrupted connector module, SB
|
05601-04
|
2
|
|
Angled connector module with socket, SB
|
05601-12
|
2
|
|
Resistor module 50 Ohm, SB
|
05612-50
|
1
|
|
Angled connector module, SB
|
05601-02
|
2
|
|
T-shaped connector module, SB
|
05601-03
|
2
|
|
Filament lamp 6 V/3 W, E10, 10 pcs.
|
35673-03
|
1
|
|
Connecting cord, 32 A, 500 mm, red
|
07361-01
|
1
|
|
Connecting cord, 32 A, 500 mm, blue
|
07361-04
|
1
|
|
Connecting cord, 32 A, 250 mm, red
|
07360-01
|
1
|
|
Connecting cord, 32 A, 250 mm, blue
|
07360-04
|
1
|
|
Battery cell, 1.5 V, baby size, type C
|
07922-01
|
1
|
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