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Parallel resistance
Storyboard 
When the resistors are connected in parallel, they are all exposed to the same potential difference which, by Ohm's law, generates different currents. The total current is the sum of the partial currents, so the total resistance is the inverse of the sum of the inverse of the individual resistances.
ID:(1397, 0)
Parallel resistance (2)
Description
When the resistors are connected in parallel, they are all exposed to the same potential difference which, by Ohm's law, generates different currents. The total current is the sum of the partial currents, so the total resistance is the inverse of the sum of the inverse of the individual resistances.
Variables
Symbol
Text
Variable
Value
Units
Calculate
MKS Value
MKS Units
$I$
I
Current
A
$I_1$
I_1
Current 1
A
$I_2$
I_2
Current 2
A
$\Delta\varphi$
Dphi
Potential difference
V
$R_1$
R_1
Resistance 1
Ohm
$R_2$
R_2
Resistance 2
Ohm
$R_p$
R_p
Resistance in Parallel
Ohm
Calculations
First, select the equation: 
to 
,
then, select the variable: 
to 
to ,
then, select the variable:
to
Symbol
Equation
Solved
Translated
Calculations
Symbol
Equation
Solved
Translated
Variable
Given
Calculate
Target :
Equation
To be used
Equations
None
(ID 3214)
None
(ID 3214)
None
(ID 3214)
(ID 16009)
Examples
(ID 16032)
(ID 16021)
ID:(1397, 0)