Technical data

The internal resistance of a voltage source

Article no: P1373200

Principle

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.

Benefits

No additional cable connections between the building blocks needed - clear arragned and quick setup
Contact saftey due to puzzle blocks system
Corrosion-free gold plated contacts
Doubled earning sucess: Electric circuit diagram on top, real components can be seen unterside

Tasks

Do voltage sources also have a resistance?

Connect resistances of various sizes in a circuit, then examine the internal resistance of the voltage source R_i by measuring its current I and terminal voltage U_T.

Scope of delivery

Angled connector module, SB	05601-02	2
T-shaped connector module, SB	05601-03	2
Interrupted connector module with sockets, SB	05601-04	2
Angled connector module with socket, SB	05601-12	2
On-off switch module, SB	05602-01	1
Socket module for incandescent lamp E10, SB	05604-00	2
Resistor module 50 Ohm, SB	05612-50	1
Connecting cable, 32 A, red, various lengths	07360-01	1
Connecting cable, 32 A, blue, various lengths	07360-04	1
Connecting cable, 32 A, red, various lengths	07361-01	1
Connecting cable, 32 A, blue, various lengths	07361-04	1
Battery Type C 1.5 V - Pack of 2 pieces	07400-00	1
Filament lamp 6 V/3 W, E10, 10 pcs.	35673-03	1
PHYWE Analog multimeter, 600V AC/DC, 10A AC/DC, 2 MΩ, overload protection	07021-11	2
Straight connector module, SB	05601-01	2
Battery holder module (C type), SB	05605-00	1