|  | 
          
            | 
              
                |  |  
                |  |  
                | 
                  
                    | Parallel circuit rules
                      
                      Components in a parallel circuit share the 
                      same voltage. Etotal = E1 = E2 
                      = . . . En 
                      Total resistance in a parallel circuit is
                      less than any of the individual resistances. Rtotal 
                      = 1 / (1/R1 + 1/R2 + . . . 1/Rn)
                      
                      Total current in a parallel circuit is 
                      equal to the sum of the individual branch currents. Itotal 
                      = I1 + I2 + . . . In  |    |    |  |