Our senior students of Science were privileged to attend a session by Prof. H.C Verma on 13th October, 2017 at Birla Vidya Niketan School. Prof. H C Verma is retired professor of Physics, at IIT, Kanpur. He has published 139 research papers in reputed journals and is the writer of several highly acclaimed Physics books for school and college students.
Gitansh Satija, Samarth Saxena, Sudhanshu Kanwar, Ansh Gupta of class XI attended the workshop along with their Physics teacher Ms. Archana Raichandani. The session, named Sip your Physics Hot started with two questions which were thrown at the audience. These questions quickly triggered a new curiosity in the young minds that came up with different possible scientific solutions to the problem!
Later, Prof. Verma added his opinion, and then proceeded to address the gathering. He discussed Thermodynamics, a branch of Science dealing with the relations between heat and other forms of energy. It was an interactive session where students not only responded to Prof. Vermas questions but also posed their own queries.
[gallery link="file" order="DESC" columns="2"]This was followed by a short tea break. Post tea, the teachers present had an interactive session with Dr. Verma on the difference between the nature of the electric field, generated by sources like variation of potential difference, and the variation of magnetic field with time.
The electric field which is produced by potential difference is conservative in nature ( i.e. the work done by force is path-dependent) whereas the electric field created by a variation of magnetic field is non- conservative in nature.
Prof. Verma explained that the special theory of relativity was inspired by Faradays experiments. The moving of a coil towards a magnet produces the same effect as moving a magnet inside a coil- the result is the same but the mechanisms are different. This is what struck Einstein and he devised the special theory of relativity.
At the end, Prof. Verma demonstrated an activity based on the generation of induced Emf in which there was a blue and red LED attached to a coil made of a large number of turns of copper wire. The blue LED glowed when the motion was fast and the red LED glowed when the speed was low, indicating the difference in their band gap.
The workshop was enriching and very stimulating. We look forward to many other such opportunities in the future.
Gitansh Satija, XI-A.
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