Your camping buddy has an idea for a light to go inside your tent. He happens to have a powerful (and heavy!) horseshoe magnet that he bought at a surplus store. This magnet creates a 0.262 T field between two pole tips 13.6 cm apart. His idea is to build a hand-cranked generator with a rotating 6.8 cm radius semicircle between the pole tips. He thinks you can make enough current to fully light a 2.66 Ω lightbulb rated at 7.48 W. That's not super bright, but it should be bright enough. With what frequency (in Hz) will you have to turn the crank for the maximum current to fully light the bulb?
Your camping buddy has an idea for a light to go inside your tent. He happens to have a powerful (and heavy!) horseshoe magnet that he bought at a surplus store. This magnet creates a 0.262 T field between two pole tips 13.6 cm apart. His idea is to build a hand-cranked generator with a rotating 6.8 cm radius semicircle between the pole tips. He thinks you can make enough current to fully light a 2.66 Ω lightbulb rated at 7.48 W. That's not super bright, but it should be bright enough. With what frequency (in Hz) will you have to turn the crank for the maximum current to fully light the bulb?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Your camping buddy has an idea for a light to go inside your tent. He happens to have a powerful (and heavy!) horseshoe magnet that he bought at a surplus store. This magnet creates a 0.262 T field between two pole tips 13.6 cm apart. His idea is to build a hand-cranked generator with a rotating 6.8 cm radius semicircle between the pole tips. He thinks you can make enough current to fully light a 2.66 Ω lightbulb rated at 7.48 W. That's not super bright, but it should be bright enough. With what frequency (in Hz) will you have to turn the crank for the maximum current to fully light the bulb?
Transcribed Image Text:6.8 cm
0.262 T
Crank
2.66 ohm/7.48 W bulb
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