Class 12 Physics NCERT Alternating Current
The chapter Alternating Current from Class 12 NCERT Physics introduces students to the behavior of electrical circuits when an alternating voltage is applied. It explains the basic concept of alternating current (AC), its representation, and the difference between AC and direct current (DC). Students learn about AC circuits containing resistor, inductor, and capacitor (RLC circuits), along with phase relationships. The chapter also covers resonance in LCR circuits, power in AC circuits, and the concept of power factor. One of the most important applications explained is transformers and their working principle.
NCERT Class 12 Physics provides step-by-step derivations, formulas, and solved examples to enhance clarity and problem-solving ability. Alternating Current is an essential chapter for CBSE Class 12 board exams and highly significant for competitive exams like JEE and NEET. By mastering this chapter, students gain a strong understanding of AC circuits and their practical applications in real life.
