Central Board of Secondary Education (CBSE) has released the date sheet for Class 10th and 12th Board Exam 2025. The exam for class 12 will start on 15th February, 2025 and will end on 4th April, 2025. According to the schedule, the Class 12 Physics exam is scheduled for February 21, 2025. With less than three months to go, students are preparing intensively for this important exam.
To help students excel in Class 12 Physics Board Exams, Shailendra Pandey, faculty member of Physics Walla, has shared a list of expected questions. Students should supplement these expert insights with thorough practice using textbooks, sample papers, sample question papers, and previous year papers available on CBSE’s official website.
This article highlights some expected questions from key chapters like electromagnetic induction, alternating current, and electromagnetic waves.
CBSE Class 12 Physics Board Exam: Expected Questions on Electromagnetic Induction, Alternating Current, and Electromagnetic Waves
Chapter 6: Electromagnetic Induction
Question 1: State Faraday’s law of electromagnetic induction. Derive the expression for the induced EMF.
Question 2: Explain Lenz’s law and its application.
Question 3: Derive an expression for the mutual inductance of two solenoids.
Question 4: Derive an expression for the self-inductance of a solenoid.
Question 5: Explain the working of an AC generator.
Chapter 7: Alternating Current
Question 1: Derive an expression for the impedance in an LCR series circuit.
Question 2: Explain the concept of resonance in LCR circuit.
Question 3: Draw the phasor diagram for the LCR circuit.
Question 4: Explain power factor and its importance in AC circuits.
Chapter 8: Electromagnetic Waves
Question 1: Derive the relationship between the electric field and the magnetic field in an electromagnetic wave.
Question 2: State Maxwell’s equations and explain their physical significance.
Question 3: Write a mathematical expression for a plane electromagnetic wave propagating in space.
CBSE Board Exam 2025: Preparation Tips for Class 12 Physics Board Exam
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.