The Central Board of Secondary Education (CBSE) has released the exam dates for class 10 and 12 students. The CBSE Board Exam 2025 For class 12 will start on February 15, 2025 and end on April 4, 2025. CBSE Class 12 Board Exam 2025 Date Sheet, The Class 12 Physics Exam Scheduled for February 21, 2025. With less than three months left, class 12 students are preparing rigorously for the Physics Board Exams.
To help students excel in Class 12 Physics Board Exam 2025, Shailendra Pandey, Faculty Member Physics wallahCompiled a set of expected questions. Along with these expert tips, students need to prepare well by using their textbooks, sample papers, sample question papers, and previous year question papers available on CBSE’s official website.
In this article, we will explore some of the expected questions Electric Charges and Fields, Electrostatic potential and potentialand current electricity.
CBSE Class 12 Physics Board Exam 2025: Expected Questions from Chapters 1 to 3
Chapter 1: Electric Charges and Areas
Question 1: State and explain Coulomb’s law in vector form.
Question 2: Define electric current and state Gauss’s law.
Question 3: Use Gauss’s Law to derive an expression for the electric field due to an infinitely long charged wire or charged sheet.
Question 4: Derive an expression for the electric field at a point along the axial line of an electric dipole.
Question 5: Using Gauss’s theorem, derive an expression for the electric field due to a uniformly charged thin spherical shell at a point outside the shell.
Chapter 2: Electrostatic potential and potential
Question 1: Derive an expression for the electric potential due to a point charge.
Question 2: Explain the concept of equipotential surfaces with examples.
Question 3: Derive an expression for the capacitance of a parallel-plate capacitor with a dielectric slab inserted between the plates.
Chapter 3: Current Electricity
Question 1: State and explain Ohm’s law.
Question 2: State Kirchhoff’s laws and solve the circuit using them.
Question 3: Derive the relation I=nqvA for current in a conductor.
CBSE Board Exam 2025: Preparation Tips for Class 12 Physics Board Exam
Understand the course: Familiarize yourself with the latest CBSE syllabus focusing on high weightage chapters like Optics, Electrostatics, and Current Electricity. Be aware of topics that have been removed or modified to streamline your preparation.
Organize Study Materials: Use NCERT textbooks and NCERT Wallah YouTube channel (Winner series) as your primary source. Additionally, refer to supplementary guides like SL Arora for extra numericals and keep CBSE sample papers and previous year papers handy for practice.
Make a study plan: Divide your study time between theory and numerical (ie, 40% theory, 60% numerical). Make sure to allocate time for daily revision and mock tests to stay on track and regularly assess your progress.
Master the basics: Ensure a clear understanding of basic concepts, formulas, and definitions. Revise key formulas and derivatives daily and maintain a formula sheet for quick reference during revision sessions.
Practice Numerical: Solve all solved and unsolved numericals from NCERT focusing on high weightage topics like Current Electricity, Electrostatics, Ray and Wave Optics, Magnetic Effects of Current, and Alternating Current. Gradually move from reference books to difficult problems.
Focus on important derivatives: Memorize and practice step-by-step derivations, as they are often asked in exams. Focus on derivatives such as the lens maker’s formula, the electric field due to dipoles, the Biot-Savart law, and the EMF in a rotating coil (AC generator).
Solve Sample Papers: Solve at least three sample papers on exam conditions during the last month of preparation. Analyze your performance to identify weak areas, time management issues, and areas that need further revision.
Revise regularly: Revise theoretical concepts, formulas and key questions regularly to strengthen your knowledge. Practice arithmetic and derivatives until you are confident and comfortable solving them in the exam.
Use Flashcards: Create flashcards for formulas, units, dimensions, and laws, making them ideal for quick revision of important concepts. They will help you to quickly remember the necessary information before the exam.
Pay attention to the presentation: Practice drawing neat, labeled diagrams such as ray and circuit diagrams. When answering, write the derivatives systematically, starting with the formula with the proper units in the numerical answers, and boxing the last answer to highlight it.