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1. [3 points] Make observations with the PhET Faraday's Law simulation to complete Table 1 in the spreadsheet template. 2. [3 points] Make observations with

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1. [3 points] Make observations with the PhET Faraday's Law simulation to complete Table 1 in the spreadsheet template. 2. [3 points] Make observations with the PhET Faraday's Law simulation to complete Table 2 in the spreadsheet template. 3. [2 points] One way to change the flux is to change the magnetic field as time goes on. One way to do this is to let the magnetic field vary sinusoidally with frequency ?according to (3) = )?"(3-abs(2 2 20?) where 1% is the strength of the field at time 0 = ?The induced voltage is then (4) 8( ?) = 42.2 7 23in(2 2+2-?) Assume that 5 = ? Hz4 = ? ? = 0.1 T, and that 0.1 = ? m. Plot the induced voltage versus time from 0 = ?to 1 = 1?s (the suggested interval between successive time values is 0.004 s). On the same graph, plot the induced voltage when the frequency is 10 = 2Hz. Label the axes with word, symbol, and unit 4. [1 point] In the PhET simulation, move the magnet back and forth slowly and observe the voltage. If the magnet oscillation frequency is doubled, keeping constant all other aspects of the magnet motion (you move the magnet back and forth more rapidly), what happens to the voltage? Is this consistent with Equation (4) and your graph from Q3 immediately above? Explain. 5. [1 point] Point your Internet browser to this Veritasium video (duration: 3:45) of using magnetic induction to levitate a large metal plate: https://www.youtube.com/watch?v=txmKr69jGBk Why does the plate levitate? Why does the plate get hot? Explain your answers. 6. [1 point ] If you make a coil with the wire in your lab kit and try to induce a voltage using the disk magnet, you will get 0 (less than 0.1 mv). Explain this by making a quantitative estimate of &, based on measurements and Equations (1) and (2)

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