Class 12th Physics Formula: Download Chapter Wise Formulas in PDF

Chapter-wise class 12th physics formulas are available for Coulomb's Law, Electric Field, Electric Potential, Capacitance, Energy Stored in a Capacitor, Ohm's Law, Power, and many more. These formulas are an integral part of the revision strategy, as they are often asked in the examination.

The chapter-wise formula PDF for class 12th physics will help you revise the CBSE class 12 physics syllabus 2025-26 and score higher in the CBSE class 12 exam 2026. Questions based on the class 12th physics formula have a high weightage in the exam. The type of question may vary from one-word answers to numerical ones. 

Read on to check the chapter-wise 12th physics formula PDF!

Class 12 Chapter-Wise Physics Formulas: Download PDF

The table below contains the chapter-wise PDF for physics class 12 formulas.

Also Read: CBSE Class 12 Physics Viva Questions with Answers

How to Memorise Class 12 Physics Formulas

You must get better at pattern recognition and context instead of rote learning class 12th physics formulas. Here is how you can strategise your preparation:

• Build a Formula Map: Group different formulas by families. For example, notice the symmetry between the formulas for electrostatics and magnetism.
• The Derivation Shortcut: Learn about the 'why' of the formula. Derive a formula once or twice to visualise the relationship between variables. 
• Visual & Active Recall: Use apps like Anki for spaced repetition. Always verify units; if the left side is in joules, the right side must be too. Write the formulas down by hand. The physical act of writing reinforces muscle memory more effectively than digital reading.
• Application: Apply the formula to at least three different numerical problems immediately after learning it.

Also Read: CBSE Class 12 Physics Deleted Syllabus 2025-26

Frequently Asked Questions Based on Class 12th Physics Formulas

There is a high weightage of questions based on class 12th physics formulas in class 12th physics exams. There are different types of questions, marked 0.5 to 4 marks each, ranging from one word to numerical. 

Type 1: One-word Questions 

What is the unit of electric field?

• Newton per Coulomb (N/C)

What is the SI unit of magnetic flux?

• Weber (Wb)

What is the unit of capacitance?

• Farad (F)

What is the phenomenon of the splitting of light into its constituent colours?

• Dispersion

What is the device used to measure electric current?

• Ammeter

Also Read: NCERT Books for Class 12 Physics

Type 2: Multiple-choice Questions 

What is the unit of electric potential?

• a) Joule
• b) Volt
• c) Newton
• d) Ohm

Answer: b) Volt

Which of the following is a scalar quantity?

• a) Electric field
• b) Magnetic field
• c) Electric potential
• d) Magnetic force

Answer: c) Electric potential

What is the formula for the force between two charges?

• a) F=kq1q2r2F = k frac{q_1 q_2}{r^2}F=kr2q1​q2​​
• b) F=12mv2F = frac{1}{2} mv^2F=21​mv2
• c) F=qEF = qEF=qE
• d) F=BIlsin⁡θF = BIl sin thetaF=BIlsinθ

Also Read: CBSE Class 12 Physics Preparation Tips 

Type 3: Numericals

1. Q) A capacitor of capacitance 10 μF is charged to a potential difference of 5 V. Calculate the charge stored in the capacitor.
   Use the formula: Q=CVQ = CVQ=CV.

Solution:

Q=10×10−6×5=50×10−6 C=50 μCQ = 10 times 10^{-6} times 5 = 50 times 10^{-6} text{C} = 50 mutext{C}Q=10×10−6×5=50×10−6 C=50 μC

2. Q) Calculate the energy stored in an inductor of inductance 2 H carrying a current of 3 A.
   Use the formula: E=12LI2E = frac{1}{2}LI^2E=21​LI2.

Solution:

E=12×2×32=12×2×9=9 JE = frac{1}{2} times 2 times 3^2 = frac{1}{2} times 2 times 9 = 9 text{J}E=21​×2×32=21​×2×9=9 J

Also Read: CBSE Class 12 Physics Syllabus 2025-26

Important Physical Constants 2025-26

Here are the most important Physical constants for 2025-26: