arallel-plate capacitor has circular plates of diameter d, separated by distance x. There is no dielectric between the plates. If you want to make a second capacitor plate separation x/2, with no dielectric, but having the same capacitance as the first, what should the diameter of the plates be?

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Chapter1: Units, Trigonometry. And Vectors
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A parallel-plate capacitor has circular plates of diameter d, separated by distance x. There is no dielectric between the plates. If you want to make a second capacitor
with plate separation x/2, with no dielectric, but having the same capacitance as the first, what should the diameter of the plates be?
Transcribed Image Text:A parallel-plate capacitor has circular plates of diameter d, separated by distance x. There is no dielectric between the plates. If you want to make a second capacitor with plate separation x/2, with no dielectric, but having the same capacitance as the first, what should the diameter of the plates be?
An emergency generator produces a 30 V output at a maximum current of 3.5 A. To use the output for household power, the voltage needs to be stepped up to 120 V.
What will the maximum current output be?
Transcribed Image Text:An emergency generator produces a 30 V output at a maximum current of 3.5 A. To use the output for household power, the voltage needs to be stepped up to 120 V. What will the maximum current output be?
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