Homework answers / question archive / QUESTION 1  This lab final has two questions

QUESTION 1  This lab final has two questions

Physics

Share With

QUESTION 1 
This lab final has two questions. Each one is a mini-lab. Complete each lab by following the instructions and answering the questions that are asked. You do not have to follow the lab documentation formations that you used during the semester. Just answer the questions and provide any screen shots that are requested. Save everything into a word document or a pdf and post the result to the class (NOT COMMUNITY) blackboard page where this lab final exam was posted for you. 
Part 1 Create two circuits in EveryCircuit o Circuit #1: A voltage source and two resistors in series. o Circuit #2: A voltage source and two resistors in parallel. o Constraint choose values so that the equivalent resistance associated with Circuits 1 and 2 be the same. 
1. Take a screenshot of each circuit and copy the images for your word file. 2. Vary the voltage in Circuit #1 and measure the current flowing from the voltage source into the resistive network. Take four data points. Present them in a well organized data table in your word document. 3. Plot the data in a properly labeled plot in your word document and use a trendline to measure the slope. Provide the value of the slope. 4. Repeat the above for the second circuit. 5. Summarize in 1-2 sentences a general method for using a test voltage source to determine if two resistive networks have the same equivalent resistance. 
Part 2 Use EveryCircuit to create a series RL circuit with the following parameters: R = 5 kSt, L = 35.5 mH. Make sure to include a ground, and that the components are connected in such a way that the signal generator and the resistor voltages (relative to ground) can be measured. Set the signal generator at the frequency, 20 kHz (sinusoidal) 1.Take a snapshot of the circuit and copy the image to your word file. Label it appropriately. 2. Connect the EveryCircuit oscilloscope so that you can see the generator voltage in 1 channel and the resistor voltage in the other channel. 3. Start the circuit. Wait long enough that a few complete waveforms appear on the scope. 4. Set the scope time scale so that you can see two or three complete waveforms. 5. Pause the scope. Maximize the window and take a screen shot of your signals. Copy this image to your word file and label it appropriately. 6. Measure the period from the oscilloscope trace and compare with the period you expect from the generator frequency. Report your calculated and measured periods. Are they similar? Should they be? 7. Measure the time shift between generator and resistor voltages and use it to find the phase angle 91. 8. Calculate the phase shift cp2 from the parameters that you used in the circuit (L, R and frequency) and compare to qd. Report how T1 compares to q.2. Are they similar? Should they be? 9. Label the oscilloscope trace on your Word file to show which voltage trace is leading and which is lagging.