EXPERIMENT 4: WIMSHURST MACHINE (Video may be available] The Wimshurst machine, shown on the right, was invented by the

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Experiment 4 Wimshurst Machine Video May Be Available The Wimshurst Machine Shown On The Right Was Invented By The 1 (171.59 KiB) Viewed 17 times

EXPERIMENT 4: WIMSHURST MACHINE (Video may be available] The Wimshurst machine, shown on the right, was invented by the English inventor and engineer James Wimshurst around 1892. The Wimshurst machine is an electrostatic generator. Like other types of generators, it generates electricity. However, it does not use magnets or magnetic fields. The Wimshurst machine uses electrostatic induction to gradually collect charge on two separate conductors. When these conductors reach their full capacity, an electric spark is generated. Since the Wimshurst machine produces high voltage, you should be careful in carrying out this experiment. Do not touch the electrical sparks directly. The high voltage won't kill you, but it will make you scream for sure. In general, do not touch any of the metallic parts of this apparatus. When operating the machine, touch only the plastic components. Observe that the machine consists of two plastic wheels that can be rotated by turning the crank. When the crank is turned, the two wheels rotate in the same direction / opposite directions (highlight one). Each wheel has a number of metallic strips glued onto it. Charge is induced on these strips and gradually carried away to the two metallic spheres. One sphere collects positive charge while the other collects negative charge. You can adjust the distance between the two spheres using the handle attached to each one. Adjust the distance between the spheres to approximately 5 millimeters, i.e. 0.5 centimeters. Then turn the crank until a spark is generated. Move the spheres further apart and see if you can generate sparks again. What is the longest spark you can generate? With a ruler, measure the distance between the two spheres for the longest spark: Each centimeter of separation requires roughly 30,000 volts of electromotive force. How many volts did you generate when you observed the longest spark? Show your calculation below: