Class 12 NCERT • Physics Part 1 (New Syllabus)
Physics Part 1 Ch 07: Alternating Current
Select a topic or study module below to explore AC voltage applied to resistors, inductors, and capacitors, LCR series circuits and resonance, power in AC circuits, LC oscillations, transformers, and comprehensive textbook numerical solutions.
Topic 01 • AC Across Resistor
Exploring Sinusoidal AC Voltage, Phase Relationship, RMS Values, and Current-Voltage In-Phase Behaviour
Topic 02 • Phasor Diagrams
Analyzing Phasor Representation, Rotating Vectors, Addition of Sinusoidal Waves, and Phase Angles
Topic 03 • AC Across Inductor
Studying Self-Induction in AC Circuits, Current Lagging Voltage by Pi by Two, and Inductive Reactance
Topic 04 • AC Across Capacitor
Investigating Charge-Voltage Dynamics, Current Leading Voltage by Pi by Two, and Capacitive Reactance
Topic 05 • LCR Circuit & Resonance
Examining Impedance Triangle, Resonance Condition, Sharpness of Resonance, and Quality Factor
Topic 06 • Power & Power Factor
Analyzing Average Power Dissipation, Apparent Power, Power Factor, and Wattless Current
Topic 07 • LC Oscillations & Transformers
Studying Electromagnetic Energy Conversions, Step-Up/Step-Down Transformers, and Efficiency Losses
Module 08 • Solutions & Numericals