We all use batteries for flashlights, cell phones, and many other devices. We know they deliver energy through electricity. Briefly explain where a battery gets its energy. A car battery can be recharged while the motor is running because of the alternator. An alternator drives current through the battery to recharge it. What kind of device is it and where does it get the energy that is carried by the current into the battery? While the alternator is complicated, there is a much simpler version of the same device, sometimes called a pickup coil. For a simulation of a pickup coil, activate the simulation after clicking on the third link listed in the assignment: Faraday's Law Enhvl'En'l'VSimulation (Links to an external site.). https://phet.colorado.edu/en/simulation/faradayslaw 1) Position the north end of the magnet closest to the right side of the coil. With the magnet at rest, describe the voltmeter reading. 2) Push the north end of the magnetic into the coil. Describe the voltmeter reading while the magnet is in motion. 3) Leave the north end of the magnet at rest inside the coil. Describe the voltmeter reading. 4) Remove the north end of the magnet from the coil by puling it out to the right. Describe the voltmeter reading while the magnet is in motion. In the eddy current tube videos, what force is slowing the magnet's fall? https://youtu.be/H31K9qcmeMU Since energy cannot be created or destroyed, where does the energy come from to drive the current in the pipe that generates the magnetic fields that slow the magnet's fall? Since energy cannot be created or destroyed, where does the energy go after the magnet has fallen through the tube