Massachusetts Institute of Technology
Sign in Create Account

Lenz's Law with Copper Pipe

A magnet is dropped down a conducting copper pipe and feels a resistive force.  The falling magent induces a current in the copper pipe and, by Lenz's Law, the current creates a magnetic field that opposes the changing field of the falling magnet.  Thus, the magnet is "repelled" and falls more slowly.

Comments (13)

this is cool

Posted over 3 years by Anonymous 00:00:28

insert here

Posted 2 years by Anonymous 00:00:55

This is way cool!

Posted almost 2 years by Anonymous 00:01:38

insert here

Posted over 1 year by Anonymous 00:00:27

insert here

Posted over 1 year by Anonymous 00:00:34

insert here

Posted over 1 year by Anonymous 00:01:38

insert here

Posted over 1 year by Anonymous 00:00:21

……i see the future…..

Posted over 1 year by Anonymous 00:01:30

insert here

Posted over 1 year by Anonymous 00:01:18

insert here

Posted over 1 year by Anonymous 00:01:04

insert here

Posted 1 year by Anonymous 00:00:18

insert here

Posted 12 months by Anonymous 00:00:30

Posted 12 months by Anonymous 00:01:38

You need to log in, in order to post comments. If you don’t have an account yet, sign up now!

Created
March 01, 2012 14:01
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
7923 times

More from MIT Department of Physics Technical Services Group

MIT Physics Demo -- Back "emf" in a Large Solenoid

MIT Physics Demo -- Back "emf" in a...

Added 7 years ago | 00:00:23 | 64783 views

Orbital Motion

Orbital Motion

Added 6 years ago | 00:03:00 | 43431 views

Gyroscopes Made Easy

Gyroscopes Made Easy

Added 3 years ago | 00:29:09 | 6315 views

Field of a Sphere and an Infinite Plane

Field of a Sphere and an Infinite P...

Added almost 4 years ago | 00:02:23 | 8354 views

Bell Labs Wave Machine: Mismatched Impedance

Bell Labs Wave Machine: Mismatched ...

Added over 4 years ago | 00:01:24 | 12852 views

MIT Physics Demo -- Conductivity of Ionized Water

MIT Physics Demo -- Conductivity of...

Added 7 years ago | 00:00:53 | 47440 views