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Les langues disponibles
Electricity
Teaching scale model for Ohm's law
Ref :
302047
ENGLISH
2. Variation of U
Using the potentiometer we varied the voltage at the lamp terminals and
measured the corresponding intensity.
U (V)
1,5
3
4.5
6
7.5
9
Result obtained: The graph of the voltage versus intensity gives a straight line:
Study of Ohm's law U=R'I
Etude de la loi d'Ohm U=R*I
10
9
8
7
6
5
4
3
2
1
0
47
69,4
85
5 After-Sales Service
This material is under a two year warranty and should be returned to our
stores in the event of any defects.
For any repairs, adjustments or spare parts, please contact:
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27 019 EVREUX CEDEX FRANCE
7
measurement of I:
I (mA)
45.8
69.4
87
102.2
115.9
123.9
2
R
= 0,9994
102,2 115,9 123,9
Rue Jacques Monod
BP 1900
+33 (0)2 32 29 40 50
Ohm's law U=RI
loi d'ohm U=RI
Straight line
Linéaire (loi d'ohm U=RI)
(Ohm's law U=RI)
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