Answer: Near Earth, the density of protons in the solar
Chapter , Problem 12(choose chapter or problem)
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 8.70 cm-3, and their speed is 470 km/s. (a) Find the current density of these protons. (b) If Earth's magnetic field did not deflect the protons, what total current would Earth receive?
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