Login to your Account

Do not have an account yet? Create one

I lost my password. Please email it to me

Looking for something specific?

Physics Demonstrations

Electricity & Magnetism »

Electro-Magnetic Rail Demo

Demo: EM-H-ER
Pira Index: 5H 40.71

 Lab Equipment  Directions
  1.  Train track
  2. Brass rod (internal magnets)
  3. 1-D cell (or C-cell)
  4. Metal battery holder
  5. 2 B-A leads
Clean the rail and connecting points on the rod with a pencil eraser
  1.  Set up as shown. Be sure all conducting surfaces are cleaned with pencil eraser and soft cloth.
  2. Touch the leads to the ends of the cells and the rod rolls down the track. Touch the leads to the opposite ends of the cells and the rod reverses its direction.
The magnet rod is made by putting two small cylindrical magnets into a copper tube so that like poles point at each end of copper tube. When they are aligned as in diagram below and current flows as shown, using right hand rule, force applied on bottom of tube gives it a forward torque, top a backward torque, and rod would roll to left.

 

 

Email a Friend About this Item

No form?
Install the cformsII plugin' .
Available here

Stay Informed

Shipping & Handling Info

Here you may include some useful information for your customers regarding your Shipping & Handling Fees, Returns Policy whether you ship Internationaly or not etc. Let them know that these charges will be calculated on Step 3 (Order Review).

Keep track of your favorite items to buy later.

To use this convenient feature, sign in to your account using the form below.

Do not have an account yet? Create one

I lost my password. Please email it to me