Important Topics for Class 12th U. P. and C.B.S.E. Board

For 2020 Board Exam

Important Topics

Coulomb’s law and Electric Field

   1.    Coulomb' law

   2.    Electric Dipole

3.    Intensity of Electric Field at axes due to dipole

  4.    Intensity of  Electric Field at equatorial position due to electric dipole

   5.    If the side of a square is a, and every corner have equal charge of value q. Find out the force on one corner

Gauss Theorem

   1.    Gauss’ theorem and proof.

   2.    Applicaions of Gauss Theorem.

Electric Potential

   1.  Electric Potential at a point due to a Point Charge.

   2.  Electric Potential due to an Electric Dipole

   3.  Work done in rotating an Electric Dipole in an Electric Field

Capacitors And Dielectrics

   1. Capacitance of an isolated Spherical Conductor

   2. Capacitance of Parallel-Plate Capacitor

   3. Capacitance of Parallel-Plate Capacitor with dielectric constant.

   4.  Relation between Permittivity and Permittivity of free space

   5. Uses of Capacitors

Electric Resistance and Ohm’s Law

   1.    Drift Velocity

   2.    Specific Resistance or Electrical Resistivity

   3.    Resistivity of Semiconductors

Electrical Circuits and Measurements

   1.    Kirchhoff’s Law

   2. Wheatstone Bridge

   2.    Meter Bridge

   3.    Potentiometer

Electric Energy and Power

   1.    Kilowatt Hour(kW-h)

   2.    Formulae of Electric Power

Magnetic Effect of Current

    1. Magnetic Field due to the current carrying conductor or Biot and Savart's Law

    2. Magnetic Field due to the Straight current carrying conductor

    3. Force on moving charge

    4. Lorentz Force

Torque on a Current Loop ( Moving Coil Galvanometer)

   1. Torque on Current Loop

   2. Moving Coil Galvanometer

Earth Magnetism

   1. Magnetic Intensity

   2. Magnetic Permeability

   3. Magnetic Susceptibility

   4. Properties of Magnetic Substances

   5.  Electromagnet

Electromagnetic Induction

   1. Magnetic Flux

   2. Faraday's Law of Electromagnetic Induction

   3. Lorentz Force

   4. Eddy Currents 

Alternating Current(A.C)

   1. Circuit Containing Inductance and Resistance only

   2. Circuit Containing Capacitance and Resistance only

   3.  Circuit Containing Inductance, Capacitance and Resistance only

   4. Power in A.C. Circuit

   5. A. C. Current Generator(Dynamo)

Electromagnetic Waves

   1. Maxwell's Equations

   2. Electromagnetic Spectrum