Hey guy! im new here and im seeking some help! so i just started a Electric Engineering course at grimsby collage and, i thought i had some sceince knowlage ohms and that. ya know? untill they gave me this. Calculating Resistor Values. Two Resistors are connected in series with values of 220ohm & 390ohm also Two Resistors are connected in series with values of 1k2ohm & 2k2ohm im not askin u to tell me the answer. just how grasp and work out the equasion. i kinda just jumped in at the deep end without any know-how. one year a plumber, next an engineer.