Problem: A wire in which there is a current of 3.09 A is to be formed into a circular loop of one turn. If the required value of the magnetic field at the center of the loop is 9.6 μT, what is the required radius? The permeability of free space is 1.25664 × 10−6 T · m/A. 1. 30.0092 2. 20.224 3. 29.2932 4. 50.2501 5. 32.3643 6. 42.8843 7. 55.4991 8. 19.6611 9. 16.7263 10. 33.25

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A wire in which there is a current of 3.09 A is to be formed into a circular loop of one turn. If the required value of the magnetic field at the center of the loop is 9.6 μT, what is the required radius? The permeability of free space is 1.25664 × 10−6 T · m/A.

1. 30.0092

2. 20.224

3. 29.2932

4. 50.2501

5. 32.3643

6. 42.8843

7. 55.4991

8. 19.6611

9. 16.7263

10. 33.25