Ls 發問於 科學及數學物理學 · 5 年前

electromagnetic concept plz help confused?

I don't understand part c, it asked me to suggest a way to make the coil to rotate continuously.

1.clockwise,anti-clockwise isn't the same as opposite torque?

2.why won't the coil stops at B with the solution's set-up?

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1 個解答

  • 天同
    Lv 7
    5 年前

    1. Opposite torques give rise to alternate clockwise and anticlockwise motion.

    2. Because the current is being cut off by the non-conducting paint at this orientation, there is no torque acting on the rotating coil. The coil continues to rotate due to inertia.