Physics | Class 12 I Marking Distribution | CBSE 2026 | Important Discussion скачать в хорошем качестве

Physics | Class 12 I Marking Distribution | CBSE 2026 | Important Discussion

Pankaj Motwani discusses the Class 12 Physics syllabus and marking distribution for the CBSE 2026 exam (0:03). He emphasizes key topics and provides preparation tips for students, especially focusing on how to prepare for the 70-mark theory paper and practical viva questions. Here's a breakdown of the key points: Exam Structure (0:21): The theory paper is 70 marks, with 30 marks allocated for practicals. Viva questions for practicals will come from the chapters covered in the 70-mark theory syllabus (0:31). Importance of NCERT (1:06): Students are strongly advised to refer to NCERT books for preparation, especially for numerical problems (1:11). Weightage and Key Topics (1:34): Electrostatics & Current Electricity (1:36): These two units together carry a weightage of 16 marks. Eliminated Topics (2:15): Potentiometer is no longer part of the syllabus. Important Electrostatics Topics (2:27): Electric charges, conservation of charge, Coulomb's Law, superposition principle, continuous charge distribution, electric field (including its formula and vector nature), electric dipole (3:23), and torque on an electric dipole in a uniform electric field (4:27). Gauss's Theorem (7:38): Its statement and applications are crucial for both the theory paper and viva. Specific applications to focus on include: electric field due to an infinite long straight wire (9:41), uniformly charged plane sheet (10:39), and uniformly charged thin spherical shell (10:50). Equipotential Surfaces (12:48): Students should practice all related questions from NCERT. Capacitance (13:48): Combination of capacitors (series and parallel), capacitance of a parallel plate capacitor with and without dielectric medium (14:31), and energy stored in a capacitor. The derivation for a partially filled dielectric capacitor is highlighted as particularly important (15:47). Current Electricity Numericals (18:09): Focus on solving problems related to Kirchhoff's Laws and Wheatstone Bridge. Ohm's Law Verification (19:42): The derivation of R = ml / ne²aτ is important for both written exam and viva questions (19:47). Preparation Strategy (17:21): The speaker suggests that focusing on these highlighted topics and derivations will help students pass the exam, aiming for 30-35 marks out of 70, as the paper's reasoning questions and complex numericals can be challenging.