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OpenStudy (anonymous):
4 compasses are positioned (magnetic moments) on a circle. These compasses fluctuate with a period T0. When moving a current I = 2A in the wire in the center of the circle, the periods of oscillations vary: T1/T=T3/T3=0,67 ; T2/T=1 ; T4/T=0,57 1. What's going on? 2. The radius is R = 1 cm, what is the intensity of the magnetic field of the earth? ***I drew the diagram****
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OpenStudy (anonymous):
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