# lab report 1 spring 2020.docx - Series and Parallel...

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Series and Parallel Circuits PHYS 1440.501 02/17/2020 Leah Dawson
Abstract: In this experiment we used two types of circuits, parallel and series four different ways to learn how to calculate equivalent resistance, test ohm’s law and use the equipment in a lab. The second thing we did was test the resistance in series and parallel circuits with light bulbs, so we could watch and physically see the voltage distribution and how a series and parallel circuits work together. The results for percent difference for procedure A (resistance values) number one: 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 circuits and learn how to use the equipment in a laboratory setting, by setting the circuits up correctly and getting the correct resistance, voltage, and current. In this experiment in procedure A we aim to properly know how to get the correct ohms for each resister, place the resisters on the circuit correctly and test, and solve for the resistance then fond the percent difference between the two. For procedure B we observe and watch how the voltage and resistance affect one another and see the voltage distribution is series and parallel circuits. The main equation we use in this experiment is ohms law and the rest just apply and work with it. We have the actual ohm’s law where V=IR units volts, the V is the voltage in volts, the I is the current in amps A, and the R is the resistance in ohm’s Ω. The next one we use is to find the resistance in series, were we just add the resistance together and then the next one also finds the resistance but in a parallel circuit by adding the reciprocal of each resistor. The third resistor equation we use when the resistors have different denominators and we need to make them equal. The next equation is the power equation, power is in watts W, and I and V are the
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