Study Chapter Details
UP Board Class 12 Physics – Electromagnetic Induction
“Electromagnetic Induction” is one of the most important chapters in UP Board Class 12 Physics that explains how changing magnetic fields produce electric currents. This fundamental principle, discovered by Michael Faraday, forms the working basis of generators, transformers, induction cookers, and many electrical devices used today.
The chapter begins with Faraday’s Laws of Electromagnetic Induction, which describe how an induced emf is generated when magnetic flux changes. Students also learn about Lenz’s Law, which states that the direction of induced current opposes the change causing it, reinforcing the principle of energy conservation.
Key concepts like magnetic flux, induced emf, motional emf, and eddy currents are explained with diagrams and practical examples. The chapter also introduces self-induction and mutual induction, which form the foundation of AC circuits and transformer functioning.
Numerical problems, derivations, and experiments included in this chapter help students understand real-world applications of electromagnetic induction. Mastering this topic is essential for scoring well in board exams and for understanding the next chapter, Alternating Current.
