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Electrical Theory / Question magnet – Wire and ring?
Suppose you have a ring wire insulation and countless long-standing friction on the table. Wire is fixed to the table. But the ring is free to move around. First wire is carrying current. (I) to the edge of the table top and ring a net expense of + Q (evenly distributed) ring is stationary. Then at t = 0, the current in the line was cut in half. (I / 2). To turn the ring? If so, it clockwise or counterclockwise? Ring to slide along the table?. If so, will the power cord,. Away from the wire, to the edge of the table near or far to the edge of the table or not I know it has something To do with the area trying induction power. / Torque on the ring … but that about it.
Magnetic field changes from the current changes to produce electricity. Field to exert any force on the ring. -dB/dt Points in the table on the left side of the wire and leave the table to the right. In addition, it is the direction of the coil. E. Therefore, if the ring To the left of the string, it will rotate clockwise and if it is to the right of the string, it will rotate counter-clockwise. If the ring is centered on the wire, it seems that is about to terminate.
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