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CBSE Class XII
Physics

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CBSE Class XII

Years

2026

Subjects

Physics

Topics

Power In Ac Circuit: The Power Factor
A Dipole in an Electric Field
AC Circuits
AC Generator
AC Voltage Applied to an Inductor
Alpha-Particle Scattering And Rutherford’S Nuclear Model Of Atom
Alternating Current Circuits
Alternating current
Application Of Junction Diode As A Rectifier
Applications of Gauss’s Law
Astronomy
Atomic Physics
Atomic Spectra
Atomic Structure
Atoms
Atoms and Nuclei
Biot-Savart Law
Bohr Model Of The Hydrogen Atom
Bohr’s Model for Hydrogen Atom
Capacitance
Capacitors and Capacitance
Cells in Series and in Parallel
Cells, Emf, Internal Resistance
Classification Of Metals, Conductors And Semiconductors
Combination of Resistors - Series and Parallel
Combination of capacitors
Conductivity-thermal and electrical
Current Density
Current electricity
Dielectrics and Polarisation
Diffraction
Dimensional Analysis
Diodes: Characteristics and Applications
Displacement Current
Drift Velocity
Drift of Electrons and the Origin of Resistivity
Dual nature of matter
Dual nature of radiation and matter
Electric Charges and Coulomb's Law
Electric Circuit
Electric Current
Electric Dipole
Electric Field
Electric Fields and Gauss' Law
Electric Flux
Electric Potential And Potential Difference
Electric Potential and Electric Potential Energy
Electric Power
Electric charges and fields
Electrical Circuits
Electromagnetic Induction and Inductance
Electromagnetic Spectrum
Electromagnetic Waves
Electromagnetic induction
Electromagnetic waves
Electromagnetism
Electrostatics
Equipotential Surfaces
Extrinsic Semiconductor
Faraday's Law
Faraday’s Law of Induction
Ferromagnetism
Force Between Two Parallel Currents
Forces
Fusion and Fission
Gauss’s Law
Image Formation
Inductors and Inductance
Interference
Interference Of Light Waves And Young’S Experiment
Intrinsic Semiconductor
Junction Diodes and Rectifiers
KCL/ KVL in AC Circuits
Kinematics
Kirchhoff's Laws
Kirchhoff’s Rules
Lenz’s Law and Conservation of Energy
Magnetic Effects of Current and Magnetism
Magnetic Field
Magnetic Field Due To A Current Element, Biot-Savart Law
Magnetic Field due to a Current Element
Magnetic Field on the Axis of a Circular Current Loop
Magnetic Flux
Magnetic Force
Magnetic Force on a Current-Carrying Wire
Magnetic moment
Magnetic properties of materials
Magnetism and Maxwell's Equations
Magnetism and matter
Magnetostatics
Mass-Energy And Nuclear Binding Energy
Microscope
Mirrors and Images
Motion in Combined Electric and Magnetic Fields
Motion in a Magnetic Field
Motion of charged particles in a magnetic field
Motional Electromotive Force
Moving Charges and Magnetism
Moving charges and magnetism
Mutual Induction
Nuclear Force
Nuclear Physics
Nuclear fission
Nuclear physics
Nuclei
Ohm’s Law
Optical Instruments
Optics
P-N Junction
Paramagnetism
Photoelectric Effect
Photoelectric Effect
Photon and Matter Waves
Potential Energy in an External Field
Potential Energy of a System of Charges
Power in Electric Circuits
Quantum Mechanics
Quantum Physics
Ray optics and optical instruments
Reflection Of Light By Spherical Mirrors
Reflection and Mirrors
Reflection of Light
Refraction
Refraction And Reflection Of Plane Waves Using Huygens Principle
Refraction At Spherical Surfaces And By Lenses
Refraction Of Light Through A Prism
Refraction Through A Prism
Resistance
Resistance and Resistivity
Resonance
Self and Mutual inductance of simple configurations
Self-Induction
Semiconductor
Semiconductor Diode
Semiconductor electronics: materials, devices and simple circuits
Semiconductors
Size Of The Nucleus
Solid State Physics, Devices, Electronics
Temperature Dependence of Resistivity
The Ammeter and the Voltmeter
The Magnetic Dipole Moment
The Moving Coil Galvanometer
The Parallel Plate Capacitor
The Photon, the Quantum of Light
The Series RLC Circuit
The p-n Junction
Thermodynamics
Torque
Torque on a Current Loop
Total Internal Reflection
Transformers
Transformers
Units and measurement
Wave Nature of Matter
Wave Optics
Wave optics
Waves
Wheatstone Bridge
Work and Kinetic Energy
Youngs double slit experiment
capacitor with a dielectric
de broglie hypothesis
electrostatic potential and capacitance
radiation
single slit diffraction
thermal properties of matter
torque

List of top Physics Questions on Power In Ac Circuit: The Power Factor asked in CBSE Class XII

Define the terms (I) resonant frequency, and (II) power factor of a series LCR circuit. For what value of the power factor will the power dissipated in the circuit be maximum?

CBSE Class XII - 2026
CBSE Class XII
Physics
Power In Ac Circuit: The Power Factor

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