Physics can be a scary ordeal for some and a very interesting subject for the rest. There are many scholars who want a program or some tips about important topics that support and help them in studying physics. With a proper preparation strategy, an idea about the important questions, derivations, and formulas in physics, a student can definitely score well in the main physics exam.
Here we would like to provide the important derivations of CBSE class 12 physics class 12 to help you score well in boards. Check the table below to learn some important derivations for Class 12 Physics.
List of Physics Derivations
The syllabus of CBSE class 12 physics is vast. It contains a total of 10 units or 15 chapters. It is important for students to know the important topics and derivations in class 12 physics to study efficiently. Given below are the important derivations for class 12 physics.
Electrostatics(Unit 1) 
 Coulomb’s Law in the form of vectors – \(\vec{F_{12}}=\vec{F_{21}}\)
 Application of Gauss theorem in the calculation of electric field
 Electric field intensity due to a thin infinite plane sheet of charge
 Electric field intensity of an electric dipole on equatorial line – \(E_{R}=\frac{1}{4\pi \varepsilon _{0}}\frac{P}{r^{3}}\)
 Electric field intensity of an electric dipole on axial line – \(E=\frac{1}{4\pi \varepsilon _{0}}\frac{2P}{r^{2}}\)
 Electric field intensity due to a uniformly charged spherical shell at various points
 The capacitance of a parallel plate capacitor with a dielectric medium
 The capacitance of a parallel plate capacitor without dielectric medium
 Electric potential due to a point charge – \(V(r)=\frac{Q}{4\pi \varepsilon _{0}r}\)

Current Electricity(Unit 2) 
 Application of Gauss theorem in the calculation of electric field intensity due to thin infinite plane sheet of charge uniformly charged spherical sphere
 The relation between current and drift velocity
 An expression for drift velocity
 Series and parallel connection of resistors

Magnetic Effect of Current and Magnetism(Unit 3) 
 Torque experienced by a current loop in a uniform magnetic field
 Ampere’s law and its application to an infinitely long straight wire. Straight and toroidal solenoids.
 The magnetic dipole moment of a revolving electron
 Apply BiotSavart law to derive the expression for the magnetic field on the axis of a currentcarrying circular loop.
 The force between two parallel currentcarrying conductors
 Torque on a magnetic dipole (bar magnet) in a uniform magnetic field.
 Current loop as a magnetic dipole and its magnetic dipole moment
 Force on a currentcarrying conductor in a uniform magnetic field
 Force on a moving charge in uniform magnetic and electric field.

Electromagnetic Induction And AC(Unit 4) 
 Self and mutual induction
 Derivation of Emf induced in a rod moving in a uniform magnetic field.
 Impedance, reactance, and average power in series LCR, LR, LC, or CR circuit.
 The relation between peak and RMS value of the current
 Derivation for resonance in a series LCR Circuit

Electromagnetic Waves(Unit 5) 
 Derivation of displacement current

Optics(Unit 6) 
 Refraction at convex surfaces
 The formula for LensMaker’s
 Diffraction using a single slit
 Derivation of the refractive index of minimum deviation in the prism
 Young Double Slit Experiment
 Derivation of the formula for angle of minimum deviation for the prism

Dual Nature of Radiation and Matter(Unit 7) 
 Derivation of the DeBroglie Relation
 The relation between threshold frequency, frequency of the incident photon and cutoff potential

Nuclei and Atoms(Unit 8) 
 Derive \(N=N_{0}e^{\lambda t}\)
 Expression of the radius in hydrogenlike atoms

Electronic Devices(Unit 9) 
 Common emitter transistor amplifier
 Common base transistor amplifier

Communication System(Unit 10) 
 Frequency modulation and amplitude modulation

The above listed were a few important derivations of CBSE class 12 physics that are most likely to be asked in the coming board exams. While studying for the board exam, students can plan accordingly giving priority to the abovementioned topics.
You can also download the important derivations in physics class 12 CBSE PDF to get well acquainted with all the derivations and answer related questions accurately in the class 12 board exams.
can you please also leave a pdf for derivations?
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