The maximum strength of the earths magnetic field is about
Chapter 22, Problem 22.99(choose chapter or problem)
The maximum strength of the earths magnetic field is about 6.9 105 T near the south magnetic pole. In principle, this field could be used with a rotating coil to generate 60.0-Hz ac electricity. What is the minimum number of turns (area per turn 0.022 m2) that the coil must have to produce an rms voltage of 120 V?
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