Lab 1W Report Template

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School

York University *

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Course

1801

Subject

Electrical Engineering

Date

Apr 3, 2024

Type

docx

Pages

4

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Phys 1801 Lab 1W – Lab Report Template Page 1 of 4 Please read and sign the Assertion of Compliance with Academic Honesty Regulations below. Failure to sign this document will result in a grade of zero on the lab report. Assertion of Compliance with Academic Honesty Regulations. I assert that I have read and understood York University’s Senate policy on Academic Honesty ( Academic Honesty Link ) and will abide by that policy in the completion of the lab exercises and preparation of this lab report. Furthermore, specific to these labs I assert that: I will not use data, answers to questions, use as a reference, include any information from another student’s lab report either from this year or a previous year. I will not use web-based tutoring sites (ex. Chegg) or AI tools (such as chat GPT, Grammarly) to complete my lab report. I will not use a cell phone/personal computer/tablet in the lab unless explicitly provided for by an accommodation or by authorization from the TA or Lab Coordinator. When working with a partner(s), I am fully aware of how all data was collected, and I was directly involved in the experimental process of each lab exercise. When working with a partner(s) and naturally may have discussed answers to question posed in the lab manual, I will compose my own individual responses. The data presented in this lab report is the data I actually observed during the lab and is not altered in any way for any reason. I will use the provided lab laptop to download the lab report template, complete and submit the lab report. By entering your name and date you agree to the terms listed above. Name: Click or tap here to enter text.
Phys 1801 Lab 1W – Lab Report Template Lab 1W Report Date: Name: Group Number: Laptop Number: Group members’ names: Lab Activity 1 – Power Supply/Ohm’s Law. 1a. Ohm’s Law using a commercial resistor Resistor Colour Code Brown, Red, Brown, Gold Resistance measured with DMM as an ohmmeter ( Ω ¿ DMM resistance rotary range setting used ( Ω ¿ Resistance value based on colour code ( Ω ¿ Tolerance based on colour code (% and Ω ) ΔV (V) I (A) Resistance, based on Ohm’s Law R = ΔV/I ( Ω ) 1.0 2.0 4.0 Questions Do the resistance values measured with the DMM and obtained using Ohm’s law, R = ΔV / I , agree with the value specified by the colour code (within the precision limit)? Is this resistor a linear or non-linear element? Explain. 1b. Summary of results for the electric bulb ΔV (V) I (A) R = ΔV/I (Ω) 1.0 2.0 4.0 Questions If you double and then quadruple the voltage, does the current double/quadruple as well? Page 2 of 4
Phys 1801 Lab 1W – Lab Report Template What did you notice about the brightness of the bulb as you increased the voltage? Is the electric bulb a linear or non-linear resistor? Explain. Lab Activity 2 – Simple DC Circuits 2a. Connecting two resistors in series Resistor Colour Code Red, Yellow, Brown, Gold Resistance measured with DMM as an ohmmeter ( Ω ¿ DMM resistance rotary range setting used ( Ω ¿ Resistance value based on colour code ( Ω ¿ Tolerance based on colour code (% and Ω ) ΔV (V) I (A) R = ΔV/I ΔV 1 R 1 = ΔV 1 /I = ΔV 2 R 2 = ΔV 2 /I = ΔV 12 R 12 = ΔV 12 /I = Questions How are ΔV 1 and ΔV 2 related to ΔV 12 ? How is R 12 related to R 1 and R 2 ? 2b. Connecting a resistor and an electric bulb in series Electric bulb observations as the voltage on the power supply is increased from 0 – 4 V: Voltage on power supply when ΔV bulb = 4.0V (V) ΔV PS = Voltage across R1 (V) ΔV 1 = Does ΔV bulb + ΔV 1 = ΔV PS ? Current, I (A) Calculation Question Calculate the total resistance of this circuit using Ohm’s law. Since you know the value of the resistor, R1, and you have measured the total resistance, what is the resistance of the electric bulb, R bulb ? (Show your work in your report.) Page 3 of 4
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Phys 1801 Lab 1W – Lab Report Template 2c. Connecting two electric bulbs in parallel Observations on the brightness of the electric bulbs in parallel: Current in the circuit: Questions What is the current through this circuit? Using Kirchhoff’s rules what should be the current through each electric bulb? Investigation What is the current reading on the ammeter after removing one of the electric bulbs? Does the light bulb light up (Y/N)? If yes, is the brightness different compared to the brightness of the bulb when both electric bulbs are connected in parallel? If no, what does this tell us about the circuit (hint: refer to your current reading)? Page 4 of 4