10] Eight pairs of electromagnets are shown below. The same current flows in eac

Question

10] Eight pairs of electromagnets are shown below. The same current flows in each electromagnet. The pairs are separated by the same distance, and they have the same length and diameter. Carefully observe the orientation of the coil and direction of current flow in the electromagnets. Rank the magnitudes of the magnetic fields at the midpoint between the electromagnets from the largest to the smallest. (5 pts.) Largest 123_45678_Smallest Or, the magnitudes of the magnetic field are all the same.

Explanation / Answer

BA = BF = 0 (due to both coils, same magnitude but opposite direction)

all other cases have same direction of field due to both coils, so will add up. Though might differ in magnitude

BC = BE > BB = BD = BH > BG > BA = BF = 0

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