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Direct-current circuits
Change of voltmeter measurement range
additional resistance for voltmeter measurement range expansion
R
add
=
Ω
x
μΩ
mΩ
Ω
kΩ
MΩ
GΩ
TΩ
internal resistance of voltmeter
R
int
=
Ω
x
μΩ
mΩ
Ω
kΩ
MΩ
GΩ
TΩ
new measurement range
U
2
=
V
x
nV
μV
mV
V
kV
MV
former voltmeter measurement range
U
1
=
V
x
nV
μV
mV
V
kV
MV
1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"
