When you drop a strong magnet through the center of a copper pipe, what happens to the copper piper and the magnet?

Question

When you drop a strong magnet through the center of a copper pipe, what happens to the copper piper and the magnet?

in progress 0
Khang Minh 3 years 2021-07-31T18:56:44+00:00 1 Answers 12 views 0

Answers ( )

  1. linhdan
    0
    2021-07-31T18:58:05+00:00
    Reply

    Copper is; unlike iron and steel; not ferromagnetic, but diamagnetic. This means that induced magnetic fields in copper will counter the applied force.

    When you drop a strong magnet through a copper pipe, the moving magnetic field will induce currents (Lenz’ Law). These currents will now induce their own magnetic field. This magnetic field counters the falling magnetic.

    Result: the magnet will fall way slower than if it was falling through a plastic pipe.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )