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Conduct the experiment and answer all questions. all you need to do is use the link and follow the steps resource: https://phet.colorado.edu/sims/html/faradays-law/latest/faradays-law_en.html 9.2 Assignment 3:

Conduct the experiment and answer all questions. all you need to do is use the link and follow the steps

resource: https://phet.colorado.edu/sims/html/faradays-law/latest/faradays-law_en.html

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9.2 Assignment 3: Investigating Electromagnetic Induction Overview In this activity, you will review the phenomena of electromagnetic induction Materials Needed / Resource Bank 0 PhET Simulation: Faraday's Law Instructions Answer the below questions one at a time. Make sure to read directions within each question carefully. Questions 1. In your own words, explain Faraday's law. 2. Follow the directions in the below procedure to investigate what happens when the magnet is outside the coil. Procedure 1. Go to the webpage PhET Simulation: Faraday's Law. You should see a magnet and a copper coil connected to a light bulb. 2. Move the magnet and place it above the copper coil, but do not touch the copper coil. Then touch the copper coil. Move the magnet to a position on the left of the coil, try touching and not touching the coil. Then move the magnet to a position below the coil, try touching and not touching the coil. Finally, move the magnet to a position on the right of the coil, try touching and not touching the coil. a) When did the lightbulb light up? b) When did the lightbulb stop lighting up? c) What happened to the light bulb each time the magnet touched the coil? 3. Based on these observations, what must occur in order for electric current to be induced in the metal coils? 4. Were you surprised by these observations? ***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 distance between the magnet and coil affects electromagnetic induction. Procedure 1. Hold the magnet above the coil at the farthest distance where the light bulb still lights up while you move the magnet side to side continuously. Then hold the magnet above the coil at a closer position and move the magnet side to side continuously. When does the light bulb light more brightly? 2. Hold the magnet to the right of the coil at the farthest distance where the light bulb still lights up while you move the magnet up and down continuously. Then hold the magnet to the right of the coil at a closer position (but NOT inside the coil) and move the magnet up and down continuously. When does the light bulb light more brightly? 3. Based on these observations, how does distance between the magnet and conductive coil affect the electric current produced? 4. Were you surprised by these observations? ***Do not close or reset the simulation. You will continue with more directions in the next question*** 4. Follow the directions in the below procedure to investigate what happens when you put the magnet inside the coil. Procedure 1. Move the magnet inside the middle of the coil. Move it around side to side, up and down. 2. Place the magnet in the coil without the magnet touching any part of the coil. Let it sit at rest. 91.43 7. Place the magnet touching the coil. Let it sit at rest. When does the light bulb light up? When does the light bulb stop lighting? How are these observations similar and different from what occurred when the magnet was outside of the coil? You should notice that the lightbulb is able to light up more brightly when the magnet is moving in the middle of the coil compared to outside of the coil. This means there is a stronger electric current being produced when the magnet is moving in the middle of the coil. Why do you think more current is produced when the magnet is moving in the middle of the coil compared to outside of the coil? Were you surprised by these observations? ***Do not close or reset the simulation. You will continue with more directions in the next qu estion*** 5. Follow the directions in the below procedure to investigate what happens when you flip the magnetic poles. Procedure 1. .'J'F-l'.4='!'-'*J Place the magnet inside the middle of the coil. Let it sit at rest. A Click on the magnet switch button V . to flip the direction of the north and south poles of the magnet. Click it just once. Then click it continuously to continuously flip the magnet. Try this outside of the coil on each side. When does the light bulb light up? When does the light bulb stop lighting? Based on these observations, how do magnetic poles affect the electric current produced? Were you surprised by these observations? ***Do not close or reset the simulation. You will continue with more directions in the next qu estion*** 6. Follow the directions in the below procedure to investigate what happens when you flip the magnetic poles. Procedure 1. Click on the button that shows two coils @ coils, one with less rings than the other. 2. Move the magnet in and out of each coil trying to get the brightest light on the bulb. Compare how bright you can get with each coil Record your observations. Based on these observations, how does the amount of coil affect the electric current produced? 5. Were you surprised by these observations? . This will change the simulation to have two P93

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