Home/Basic Physics/Basic electricity/Resistors in series16. Basic electricityResistors in seriesIn 16. Basic electricityFormulaCopy LaTeXReq=∑iRiR_{\text{eq}}=\sum_iR_iReq=i∑RiTagselectricityelectricity basicphysicsphysics formulaDetailThe equivalent series resistance is the sum of the resistances.Explore the ideaExplore the ideaFound an error? Contact us.Related formulasRelatedResistors in parallel1Req=∑i1Ri\frac1{R_{\text{eq}}} = \sum_i\frac1{R_i}Req1=i∑Ri1Open formulaOpen in sectionRelatedOhm's lawV=IRV=IRV=IROpen formulaOpen in sectionRelatedVoltage dividerVo=ViR2R1+R2V_o=V_i\frac{R_2}{R_1+R_2}Vo=ViR1+R2R2Open formulaOpen in section