Weekend Activity No Magnet Motor

Resource Info

Basic Information

Yes, you can build a motor where you don't need a magnet! Check it out.

00 hours 45 mins

Instead of a permanent magnet this motor has an electromagnet which is made by winding insulated copper wire on a sewing machine bobbin. Its spinning coil is made out a meter long insulated copper wire. On one end the entire insulation is scraped. On the other only 3-sides are scraped. The remaining insulation forms an ON/OFF switch. A 1.5-volt battery is sufficient to run this splendid motor. 

This work was supported by IUCAA and Tata Trust. This film was made by Ashok Rupner


To make a motor where you don't need a magnet for it!

Explore the concepts of 

  • electricity, magnetism
  • armature, polarity
  • DC motor
Activity Steps: 

Here is a 1 minute Do It Yourself video clip



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