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U
o
U
o
U
o
U
o
=
U·(R
1
·R
2
+R
o
·R
2
+R
o
·R
1
)/(R
o
·R
1
)
U
U
U
U
=
U
o
·(R
o
·R
1
)/(R
1
·R
2
+R
o
·R
2
+R
o
·R
1
)
R
1
R
1
R
1
R
1
=
R-R
2
R
2
R
2
R
2
R
2
=
R-R
1
R
R
R
R
=
R
1
+R
2
Potentiometer with user circuit: circuit and variable resistances, voltages
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