DAY 22 OF 90 DAYS REVISION MOST IMPORTANT QUESTIONS CLASS 12 PHYSICS #class12 #physics #cbse #boards

Join our 90 day revision for class 12th CBSE Physics board exam to score full marks In this video, we will be discussing the most important questions for class 12th CBSE physics board exam. Link for the Day 1 -    • DAY 1 OF 90 DAYS REVISION FOR CLASS 12 PHY...   Link for the Day 2 -    • DAY 2 OF 90 DAYS REVISION FOR CLASS 12 PHY...   Link for Day 3 -    • DAY 3 OF 90 DAYS REVISION FOR CLASS 12 PHY...   Link for Day 4 (Part 1) -    • DAY 4 (PART 1) OF 90 DAYS REVISION FOR CLA...   Link for Day 4 (Part 2) -    • DAY 4 (PART 2) OF 90 DAYS REVISION FOR CLA...   Link for Day 5 -    • DAY 5 OF 90 DAYS REVISION ASSERTION REASON...   Link for Day 6 -    • DAY 6 OF 90 DAYS REVISION ASSERTION REASON...   Link for Day 7 -    • DAY 7 OF 90 DAYS REVISION MOST IMPORTANT Q...   The link for the derivation of Q5 would be uploaded soon. revision of all physics concept full syllabus most important questions numericals theory derivations I hope you liked this video, for more such content please- Like, comment, share and subscribe my channel for more videos. #chapter #1 #youtube #fullchapter #education #channel #like #physics #12 #class #class12 #exam #papers #important #questions #level #learning #flux #electrostatics #current #magnetism #electricity #study #comment #subscribe #share #with #friends #consistency #hardwork #unit #learn #chemistry Chapter 1: Electric Charges and Fields Electric Charges − Conservation of charge Coulomb’s law-force between two point charges Electric field, electric field due to a point charge, electric field lines, electric dipole, electric field due to a dipole, torque on a dipole in uniform electric field. Electric flux, statement of Gauss’s theorem and its applications to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell (field inside and outside). Chapter-2: Electrostatic Potential and Capacitance Electric potential, potential difference, electric potential due to a point charge, a dipole and system of charges Equipotential surfaces, electrical potential energy of a system of two point charges and of electric dipole in an electrostatic field Conductors and insulators, free charges and bound charges inside a conductor Dielectrics and electric polarisation, capacitors and capacitance, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, energy stored in a capacitor. Unit II: Current Electricity Chapter 3: Current Electricity Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility and their relation with electric current Ohm’s law, electrical resistance, V-I characteristics (linear and non-linear), electrical energy and power, electrical resistivity and conductivity Carbon resistors, colour code for carbon resistors; series and parallel combinations of resistors; temperature dependence of resistance Internal resistance of a cell, potential difference and EMF of a cell, combination of cells in series and in parallel Kirchhoff’s laws and simple applications Wheatstone bridge, metre bridge Potentiometer − Principle and its applications to measure potential difference and for comparing EMF of two cells Unit III: Magnetic Effects of Current and Magnetism Chapter 4: Moving Charges and Magnetism Concept of magnetic field − Oersted’s experiment Biot - Savart law and its application to current carrying circular loop Ampere’s law and its applications to infinitely long straight wire Cyclotron Force on a current-carrying conductor in a uniform magnetic field Force between two parallel current-carrying conductors-definition of ampere Torque experienced by a current loop in uniform magnetic field; moving coil galvanometer-its current sensitivity and conversion to ammeter and voltmeter. Chapter 5: Magnetism and Matter Current loop as a magnetic dipole and its magnetic dipole moment Magnetic dipole moment of a revolving electron Magnetic field intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis Torque on a magnetic dipole (bar magnet) in a uniform magnetic field − Bar magnet as an equivalent solenoid Magnetic field lines Earth’s magnetic field Magnetic elements Para-, dia- and ferro - magnetic substances, with examples Electromagnets and factors affecting their strengths Unit IV: Electromagnetic Induction and Alternating Currents Chapter 6: Electromagnetic Induction Electromagnetic induction − Faraday’s laws Induced EMF and current Lenz’s Law Eddy currents Self and mutual induction. Chapter 7: Alternating Current Alternating currents − Peak and RMS value of alternating current/voltage Reactance and impedance LC oscillations (qualitative treatment only) LCR series circuit Resonance Power in AC circuits Wattless current AC generator and transformer Measurement of internal resistance of a cell Ray Optics Wave Optics Dual nature of matter and radiation EM waves Atoms Nuclei Semiconductor Devices