Abstract: In this experiment we used two types of circuits, parallel and series four dif learn how to calculate equivalent resistance, test ohm's law and use the equipment second thing we did was test the resistance in series and parallel circuits with light could watch and physically see the voltage distribution and how a series and paralle work together. The results for percent difference for procedure A (resistance values 3.12%, number 2: 4.32%, number 3: 3.09%. and number 4: 2.45%. Introduction: The objectives for this lab are to test ohm's law with series and parallel circ how to use the equipment in a laboratory setting, by setting the circuits up correctly the correct resistance, voltage, and current. In this experiment in procedure A we a know how to get the correct ohms for each resister, place the resisters on the circuit test, and solve for the resistance then fond the percent difference between the two. B we observe and watch how the voltage and resistance affect one another and see distribution is series and parallel circuits. The main equation we use in this experiment is ohms law and the rest just work with it. We have the actual ohm's law where V=IR units volts, the V is the vo the I is the current in amps A, and the R is the resistance in ohm's 2. The next one find the resistance in series, were we just add the resistance together and then the n finds the resistance but in a parallel circuit by adding the reciprocal of each resistor