ELECTRICITY AND MAGNETISM - ELECTROMAGNETIC INDUCTION - MOTORS AND GENERATORS	NC State University Faculty Access
Previous Next Eternity Flashlight # 5K40.28
Description: An internal capacitor in this flashlight is charged by shaking the flashlight back and forth (with moderate force). When this is done, an internal magnetic is forced back and forth through a coil. The induced current in the coil then powers the capacitor. A rectifier circuit is used to convert the AC current from the coil to DC before it is connected to the capacitor. Parts: Eternity Flashlight Purchased/Built: purchased Setup Time: none Quant. in Demo Room: 1 Source: Arbor Scientific Demo References Meiners 31-2.10 A coil connected to a light bulb is mounted on a disk rotating between the poles of an electromagnet. Picture.
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