latte-guzzling ecotopians at their? Instead of the four toxic and disposable 1.5-volt batteries suggested for your walkabout CD player, you will place a 2.0 m conducting wand across your handlebars. Pedaling furiously in a direction perpendicular to the local magnetic field, you wish to go fast enough to induce a potential difference of 6.0 V (equivalent to four batteries in series). (a) The strength of the Earth's magnetic field at your location is 5.0×10-5 T. How fast will you need to go? (b) Is this speed street-legal? (c) The magnetic declination at your location is 19°. At what angle from geographic north should you travel to maximize the potential difference of your environment-friendly arrangement?
During your biking tour of the Pacific Northwest, you decide to outdo those
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