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4 pts The magnetic field of the Earth varies over time and reverses its poles every half million years or so. Currently, the magnitude of the Earth's magnetic field at either pole is approximately 7 x 10- T. At the next pole reversal, while the field is zero, some boyscouts decide to replace the field using a current loop around the equator. Without relying on magetization of materials inside the Earth, determine the current that would generate a field of 4.8e-5 T at the poles. The radius of the Earth is RE = 6.37 x 10 m. Your Response History: 1. Incorrect. Your answer: "91.24e7 A". Correct answer: "2.58e9 A". The data used on this submission: 9E- 05 T; Submitted 2 days after late deadline. 2. Incorrect. Your answer: ".811e9 A". Correct answer: "2.29e9 A". The data used on this submission: 8E- 05 T; Submitted 2 days after late deadline. Score: 0/4 You may change your answer and resubmit: A ( + 1E7 A)