Electromagnetic Induction Class 12 – Faraday’s Laws, NCERT Solutions & CBSE PYQs
Here are some important pointers regarding electromagnetic induction, drawing on the provided sources: Inter-relatedness of Electricity and Magnetism : Historically, electricity and magnetism were seen as separate phenomena. However, experiments in the early 19th century by Oersted and Ampere demonstrated that moving electric charges produce magnetic fields . This led to the converse question: Can moving magnets produce electric currents? Michael Faraday in England and Joseph Henry in USA conclusively showed around 1830 that electric currents are induced in closed coils when subjected to changing magnetic fields . Electromagnetic Induction Defined : This phenomenon, where electric current is generated by varying magnetic fields, is appropriately called electromagnetic induction . Its discovery is not just of theoretical interest but has immense practical utility, directly leading to the development of modern-day generators and transformers, which underpin today's civilization. ...