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                    | Series circuit rules
                      
                      Components in a series circuit share the 
                      same current. Itotal = I1 = I2 
                      = . . . In 
                      Total resistance in a series circuit is 
                      equal to the sum of the individual resistances, making it
                      greater than any of the individual resistances. Rtotal 
                      = R1 + R2 + . . . Rn 
                      Total voltage in a series circuit is equal 
                      to the sum of the individual voltage drops. Etotal 
                      = E1 + E2 + . . . En  |    |    |  |