OPEN GENERATOR | Telugu
Channel: Arvind Gupta
Date: 2017-01-04

As you move the bow left and right the strong magnets spin inside a coil. This spinning magnet field generates an EMF and lights the LED. To make this Open Generator you will need a coil of 1000 turns made of 38-gauge insulated copper wire, neodymium magnets, LED, knitting needle etc. First wind 1000 turns of insulated copper wire on a bottle to make the coil. Scrap the insulation from the ends of the coil to expose the copper and then attach them to a LED.
Then stick two neodymium magnets on the ends of a rubber piece. Weave a knitting needle through the rubber. As you spin the magnets in the coil the LED should light up.
Now mount the magnets and coil on an upright wooden frame. Place the bow on the knitting needle. As you move the bow left and right the strong magnets will spin inside the coil creating an EMF. This current will light the LED. This simple models depicts the working on an Electrical Generator.

This work is supported by IUCAA (www.iucaa.in) and TATA Trust (http://www.tatatrusts.org/) and (www.tata.com/aboutus/sub_index/Tata-trusts)

TATA Trust: Education is one of the key focus areas for Tata Trusts, aiming towards enabling access of quality education to the underprivileged population in India. To facilitate quality in teaching and learning of Science education through workshops, capacity building and resource creation, Tata Trusts have been supporting Muktangan Vigyan Shodhika (MVS), IUCAA's Children’s Science Centre, since inception. To know more about other initiatives of Tata Trusts, please visit www.tatatrusts.org

Credits:,Ashok Rupner, Manish Jain, Pradnya Pujari, Shivaji Mane, Jyoti Hiremath, Arvind Gupta, Vidula Mhaiskar