Solved: High above the surface of the Earth, charged
Chapter 22, Problem 72(choose chapter or problem)
High above the surface of the Earth, charged particles (such as electrons and protons) can become trapped in the Earths magnetic eld in regions known as Van Allen belts. A typical electron in a Van Allen belt has an energy of 45 keV and travels in a roughly circular orbit with an average radius of 220 m. What is the magnitude of the Earths magnetic eld where such an electron orbits?
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