Meeting #11. T HE S ETUP Piece of Steel Magnet Copper Tube: Conductive Non-magnetic.

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Presentation transcript:

Meeting #11

T HE S ETUP Piece of Steel Magnet Copper Tube: Conductive Non-magnetic

T HE E XPERIMENT Video Link: demo-lenzs-law-with-copper-pipe-10268/ demo-lenzs-law-with-copper-pipe-10268/ Extra Link: nslaw/ nslaw/

S TEEL Accelerates close to gravity Air resistance is only upwards force (negligible)

M AGNET

Changing Magnetic Field Induced Current

T O S UM IT U P The falling magnet induces a current within the tube. By Lenz’s law, the current creates a magnetic field that opposes the field of the falling magnet. The magnet feels a resistive (upward) force, and falls slowly.