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Homework answers / question archive / Inductor Lab (15 points) Before attempting this lab please complete the material from the Week 13 plan

Inductor Lab (15 points) Before attempting this lab please complete the material from the Week 13 plan

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Inductor Lab (15 points) Before attempting this lab please complete the material from the Week 13 plan. This lab covers Chapter 30 and some of 31 Part I (8 points) 1) Got to https://www.falstad.com/circuit/ 2) Construct the circuit shown using a 5V battery, resistor, capacitor, inductor and two switches (A & B) 3) For this Step we explore what happens when you open & close Switch B (while Switch A stays open) a) Make sure both switches are open and hit the Reset button.) Add a scope for the capacitor. b) Describe what happens when you close Switch B. 400Ω c) What kind of circuit is it? (eg:RC/LC, charging/discharging) d) What is the theoretical time constant for this circuit? e) Use the mini graph from the scope to verify the time constant, similar to what you did for the RC Circuit (HINT: nd time to get to 63% of max Voltage) 4) Now we charge up the capacitor and then discharge it into the inductor using the following: Question 4 Setup: i) rst make sure to open both switches ii) click Reset iii) close Switch B until the capacitor is about 99% charged iv) opening Switch B You will use Question 4 Setup to reset the experiment for the rest of this question: a) b) c) d) e) f) Add a second scope, this one on the inductor Do Question 4 Setup then describe the behavior of the circuit. (use the scope) What kind of circuit is this? Calculate the theoretical angular frequency (ω) of this circuit Using the graph nd the period of the circuit, and use it to nd the angular frequency. Find the % di erence between measured and theoretical angular frequencies 5) For this part we explore what happens when you add a resistor. a) Add a 50 ohm resistor in series with the inductor. b) Do the Question 4 Setup & describe the behavior (use the scope) c) Make a plot of the maximum values (which is when the graph peaks above the x-axis) VS time using at least 5 maximum values d) What does this graph show? In other words what is the meaning of this decaying maximum values Part II (7 points) maximum values fi fi fi fi ff fi 6) Create your own circuit using a battery, resistors, capacitors and/or inductors. 7) Make any kind of circuit that you nd interesting. If you are feeling crazy you can even use an AC voltage source (requires a little understanding of chapter 31) 8) Use scopes to investigate its behavior 9) Make a video about the circuit with the following guidelines a) 1.5 to 3 minutes long b) Describe any behaviors you observe and try to explain them in terms of what you know about resistors, capacitors, and inductors.(and AC sources if you use one) c) Either (i) upload the video to YouTube OR (ii) upload the video into the Discussion Forum

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