Lab #: 
Lab #8 
Title: 
Series Circuits 
Date Performed: 
Oct 11^{th}, 2018 
Course: 
ECET 201001 
Percent Contribution 

Lab Partner 
Prelab 
Lab Session 
Report 
Joe Velasquez 

Warren Mitchell 

Totals 
100 
100 
100 
Abstract: Resistance is the opposition to free flow or motion of any substance. The electric component used either to limit current through an active component to reduce voltage in the circuit is a resistor. The calculated percentage error for each resistors was within the range of the tolerance – 5 percent.
Introduction: The objective of this lab experiment is to introduce Series Circuits. We will learn how to construct several resistors in series to the voltage source and at the end of the experiment, we will calculate the Total Resistance when they are in series. We will also measure the current across each element and determine whether the measured values are equal to the calculated values. The goal of this experiment is to be familiar with building and measuring series circuits.
Simulation: We did not use the computer program multisim for this lab, so there was no simulation besides for the experiment.
Experimental: Construct series circuits using different combinations of wires, and resistors. Observe the effects of an electric current. Compare the observations from different trials to discover how relationships are affected by changing one or more resistors. Classify and analyze observations in the chart below.
Results and Discussions:
joe insert chart and results here
Questions for lab #8:
1.) If the measured value of Rt did not equal the sum of the individually measured resistance, you might conclude that
A: ( C ) the ohm meter measurements are subjected to some error.
A: (B) 1.67mA
A: (A) TRUE
A: ( D ) 667 mA
A: take a look at ohms law, if we decrease the resistance the current will be higher.
6:) If two resistors in a series circuit suffer a change in resistance such that one increased by 10 percent and the other decreased by 10 percent. Explain why the circuit will not necessarily stay constant. Under what conditions would the current undergo no change ?
A:
Conclusions:
References:
Books or Magazines: Brian H. Stanley, experiments in electric circuits, Pearson 9th ed., 2009, pgs. 4144
Lab Grading
Score 
Weight 
Item 

Cover Page (3 percent) 

1 
Lab number and name 

1 
Date performed 

1 
Team members 

2 
Table of Contents (2 percent) 

Introduction (5 percent) 

2 
Lab station number or list of test equipment with model and serial numbers 

3 
Lab objectives 

Body (40 percent) – separate section for each circuit 

10 
Circuit title and function 

20 
Measured response – including all the data required in the lab writeup 

15 
Comparison of the theoretical and measured responses – either plotted on the same chart if they are curves or showing the per cent difference if they are individual points. 

15 
Discussion – with answers to the questions and a credible explanation of any significant variations 

General (30 percent) 

10 
Grammar, spelling, and punctuation 

10 
Plot format – independent variable on the xaxis, dependent variables on the yaxis, legible data points and curves, labeled axes with units, linear or log scales as appropriate, figure numbers and captions 

10 
Table format – appropriate number of significant digits, clear column headings, appropriate column widths and row heights, table numbers and captions 

100 
Total 
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