Lab Report 4

pdf

School

Clemson University *

*We aren’t endorsed by this school

Course

2080

Subject

Electrical Engineering

Date

Feb 20, 2024

Type

pdf

Pages

Uploaded by ProfMetalStork38

Nyric Timmons Lab Report 4 Parallel Circuit

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Nyric Timmons ECE 2080 October 13th, 2023 Project Title: Parallel Circuits Objective: The main objective of this lab was to provide an introduction to parallel circuits. It also served as a refresher on essential skills such as using breadboards, interpreting resistor ratings, and employing multimeters to assess resistor ratings, as well as to measure current voltage values. Furthermore, the lab aimed to reacquaint students with the practical application of LTSpice, specifically calculating voltage and current within parallel circuits. Ultimately the lab’s general objective was to utilize breadboards and multimeters to determine voltage and current across two distinct resistors connected in parallel. Equipment: ● DC Power Supply ● Ohmmeter ● Voltmeter ● Ammeter ● Two resistors ● Wire Connectors ● LTSpice on Laptop ● Breadboard ● 4 Banana Plug Wires Procedure: 1. The initial step involved identifying the resistance values and tolerances of the resistors by analyzing the color bands on each one. To verify these values, the resistors were individually connected to an ohmmeter for confirmation 2. Once the resistor values were confirmed, the subsequent task was to construct the circuit according to the figure given in out lab packet 3. In the configuration, the setup was connected to a voltmeter to measure the voltage across resistor RR1. To measure the voltage across RR2, a similar setup was used, with the outer red and black wire connectors across RR2, rather than RR1 4. To measure the current passing through each resistor, an ammeter was employed, and the wire connectors were attached in series with each resistor branch 5. After recording the voltage and current values across each branch, the circuit was simulated using LTSpice.

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Observation and Discussion: Even though RR1 and RR2 were rated for 1.5 kΩ and 3.3 kΩ, respectively, our ohmmeter readings indicated slight deviations with RR1 measuring 1.49 kΩ and RR2 measuring 3.241 kΩ. This variation is expected because both resistors had a rated tolerance of 5%, allowing for a small deviation from the nominal values. To validate our measurements, we compared the values obtained through LTSpice. In the screenshot of the LTSpice, you see the voltage over the time graph displayed that the voltage values across both RR1 and RR2, represented by the green line, were approximately 10 V. The current across II1, was around 6.69 mA, while the current across II2 was about 3.31. The current across the battery source appeared as -9.74, with the negative sign coming from the battery’s negative polarity. The results that were acquired from using the LTSpice simulation closely aligned with the values measured by the ammeter and voltmeter. Any minor discrepancies might be attributed to the fact that the physical resistance values were not precisely as rated. The measured values and simulated values across each resistor made sense because the sum of the currents across the parallel branches equaled the current across the source. Similarly, the measured and simulated voltage values across each branch made sense, as the voltage across parallel branches remains constant and equal to the voltage source. Given these results, our objective of measuring voltage and current across resistors in parallel and deepening our understanding of parallel circuit concepts was successfully achieved. Conclusion: In conclusion, our goal of measuring current and voltage across resistors connected in parallel using a breadboard and multimeter was successfully accomplished. The findings from this lab reinforced our understanding of parallel circuits and the practical use of breadboards, voltmeters, ammeters and ohmmeters. The inclusion of LTSpice for circuit simulation and measurements provided valuable confirmation of our physical circuit results. However it is worth noting that the overall lab experience could be enhanced with more detailed instructions or guidance on how to properly connect the voltmeter and ammeter to the parallel circuit on the breadboard. Additionally, providing instructions on the correct setup and calibration of the voltmeter and ammeter for accurate measurement would be better.