Two Circular Coils of Diameter 30

question 56

Short Answer

Two circular coils of diameter 30.0 cm are parallel to each other and have their centers along the same line L but separated by 22.0 cm.When an experimenter views the coils along L,the coil closer to her carries a clockwise current of 2.50 A.Find the magnitude and sense (clockwise or counterclockwise)of the current needed in the other coil so that the net magnetic field on L midway between the two coils will have a magnitude of 4.10 µT and point away from the experimenter who is viewing the coils along L.(μ₀ = 4π × 10^-7 T ∙ m/A)

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