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Answer all questions and conduct the experiment resource: https://phet.colorado.edu/sims/html/circuit-construction-kit-ac/latest/circuit-construction-kit-ac_en.html 9.5 Assignment 3: Investigating AC and DC circuits Overview In this activity, you will review the
Answer all questions and conduct the experiment
resource: https://phet.colorado.edu/sims/html/circuit-construction-kit-ac/latest/circuit-construction-kit-ac_en.html
9.5 Assignment 3: Investigating AC and DC circuits Overview In this activity, you will review the functions of AC and DC circuits. Materials Needed / Resource Bank o PhET Simulation: Circuit Construction Kit: AC Instructions Answer the below questions one at a time. Make sure to read directions within each question carefully. Questions 1. a) In your own words, what is the difference between a direct current (DC)) and alternating current (AC) circuit? b) What creates DC currents? c) What creates AC currents? 2. Follow the directions in the below procedure to compare AC and DC currents. Procedure 1. Go to the webpage PhET Simulation: Circuit Construction: AC. User tips: - To add things to the simulation, click on the items listed on the left side. - To remove things from the simulation, click on the item. It should have a yellow highlight around it, and a trash button --j shows up at the bottom of the page. Click on the trash button to delete the item. To disconnect pieces, click on the junction between the two pieces. A scissor button i9 2. Create a DC circuit using one battery, two wires, one light bulb, and one switch in a single loop. Close the switch. Record your observations. You can open the switch any time you want to stop the electric current momentarily. shows up. Click on the scissor to disconnect. 3. Create an AC circuit using one AC voltage @ , two wires, one light bulb, and one switch in a single loop. Close the switch. Record your observations. You can open the switch any time you want to stop the electric current momentarily. Current Chart P Click on the \"current chart\" tool shown on the right. Use this tool to observe the current in the AC circuit and the DC circuit. Describe similarities and differences between the current measured. 6. Were you surprised about any observations? 5-" ***Do not close or reset the simulation. You will continue with more directions in the next question*** 3. Follow the directions in the below procedure to investigate how voltage and frequency affects the function of an AC circuit. Procedure 1. With the AC circuit you built in #2, click on the AC voltage. Increase and decrease the voltage and record your observations about how this changes the motion of the electric current and the brightness of the light bulb. 2. Increase and decrease the frequency of the AC voltage. Record your observations about how this changes the motion of the electric current and the brightness of the light bulb. 3. What does frequency seem to be a measure of for the AC voltage? 4. Follow the directions in the below procedure to investigate how an AC and DC voltage interact together in a circuit. Procedure 1. What do you think will happen if you create an electric circuit with a DC voltage and an AC voltage? Click the reset button Q to clear the page. 3. Create an electric circuit using one battery, one AC voltage, wires, and one light bulb all connected in a single loop. 4. Click on the battery to check its voltage. Click on the AC voltage to check its voltage. They should be at the same voltage level. Record this voltage. 5. Describe the motion of the electric current and the brightness of the light bulb in this circuit with equal DC and AC voltage sources. !'3 6. Click on the DC battery to increase its voltage so that it is greater than the voltage of the AC voltage. 7. Describe the motion of the electric current and the brightness of the light bulb in this circuit with the DC voltage greater than AC voltage source. How is the circuit behaving similar and different from when the DC and AC were equal in voltage? P Change the DC and AC voltages so that the AC voltage is higher than the DC voltage. Describe the motion of the electric current and the brightness of the light bulb in this circuit with the AC voltage greater than DC voltage source. How is the circuit behaving similar and different from before? 5-" 5. Do your observations in Question #2 - 4 align with your explanations in Question #1? Would you modify anything about your responses in #1Step by Step Solution
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