Скачать или смотреть चालक-अचालक, परिरक्षण प्रभाव, पराविद्युत व ध्रुवण, परावैधुतांक| Class 12 Physics Chapter 2 | L 9

Effect of Electrostatic Field on Conductors & Insulators | Electrostatic Shielding | Dielectrics & Polarization | Relative Permittivity Explained | Class 12 Physics Chapter 2 | चालक और अचालक पर स्थिरवैद्युत क्षेत्र का प्रभाव | पराविद्युत पदार्थ | परावैद्युतांक | Electric Potential and Capacitance | Physics Mirror | Arun Sir | NCERT Full Explanation in Hindi


Welcome to Physics Mirror,
In this detailed lecture, we will understand some of the most important and conceptual topics from Class 12 Physics Chapter 2 – Electric Potential and Capacitance (विद्युत विभव एवं धारिता).
This session covers the effect of electrostatic field on conductors and insulators, electrostatic shielding, and the complete concept of dielectric materials (पराविद्युत पदार्थ) along with polarization (ध्रुवण) and relative permittivity (परावैद्युतांक).


🔹 1️⃣ Effect of Electrostatic Field on Conductors (चालक पर स्थिरवैद्युत क्षेत्र का प्रभाव)


🔹 2️⃣ Effect of Electrostatic Field on Insulators (अचालक पर स्थिरवैद्युत क्षेत्र का प्रभाव)

Unlike conductors, insulators (non-conducting materials) do not have free electrons.
When an external electric field is applied, the charges do not move freely, but the molecules get slightly displaced or distorted.
This displacement produces tiny dipoles inside the material, leading to polarization.

अचालक पदार्थों में मुक्त इलेक्ट्रॉन नहीं होते, इसलिए उनमें केवल अणुओं का हल्का विस्थापन होता है, जिससे उनमें सूक्ष्म द्विध्रुव उत्पन्न होते हैं।

🔹 3️⃣ Electrostatic Shielding (स्थिरवैद्युत परिरक्षण)

Electrostatic shielding is the phenomenon by which a region is protected from external electric fields by enclosing it with a conducting material.

Example:
When we sit inside a car during lightning, we remain safe because the metallic body of the car acts as a Faraday Cage, providing electrostatic shielding.

यह प्रभाव किसी क्षेत्र को बाहरी विद्युत क्षेत्र से बचाने के लिए प्रयोग किया जाता है।


🔹 4️⃣ Dielectric Materials (पराविद्युत पदार्थ)

A dielectric is a non-conducting material that can be polarized by an electric field.
When a dielectric is placed in an external electric field, the field induces dipoles within the dielectric material.

Examples: Mica, Glass, Paraffin Wax, Distilled Water, etc.

There are two types of dielectrics:
1️⃣ Non-polar Dielectrics – Molecules have no permanent dipole moment (e.g., CO₂, N₂).
2️⃣ Polar Dielectrics – Molecules have a permanent dipole moment (e.g., H₂O, HCl).


चालक में विद्युत क्षेत्र अंदर शून्य, सतह पर आवेश
अचालक में विद्युत क्षेत्र ध्रुवण के कारण सूक्ष्म द्विध्रुव
स्थिरवैद्युत परिरक्षण चालक कवच के अंदर क्षेत्र शून्य
पराविद्युत पदार्थ अचालक जो ध्रुवित होते हैं
ध्रुवण अणुओं में सूक्ष्म द्विध्रुव उत्पन्न होना
परावैद्युतांक पदार्थ की ध्रुवण क्षमता का मापक

📅 Chapter: Electric Potential and Capacitance (विद्युत विभव एवं धारिता)
👨‍🏫 Teacher: [Arun Sir]

🌐 Connect with PHYSICS MIRROR (physicsmirror):

🔵 Instagram:   / physicsmirror  

🐦 Twitter (X):   / physicsmirror  

🔵 Facebook:   / physicsmirror  

🔗 LinkedIn:   / physicsmirror  

▶️ YouTube:    / @physicsmirror  

📱 WhatsApp (Support/Group): https://whatsapp.com/channel/0029VbBM...

📢 Telegram Channel: https://t.me/physicsmirrorofficial

#PhysicsMirror #Class12Physics #ElectricPotential #Capacitance #Electrostatics #NCERTPhysics #ArunSir #PhysicsLecture #ElectrostaticShielding #Conductors #Insulators #Dielectric #Polarization #Permittivity #RelativePermittivity #ElectricField #PhysicsShorts #BoardExam2025 #CBSEPhysics #UPBoardPhysics #BiharBoardPhysics #JEEPhysics #NEETPhysics #PhysicsConcepts #StudyMotivation #PhysicsClass12 #ElectrostaticsChapter #PhysicsMadeEasy #ElectrostaticEffect #FaradayCage #StaticElectricity #ElectricPotentialDifference #PhysicsHindi #ScienceLecture #StudyWithArunSir #NCERTClass12 #PhysicsEducation #ExamPreparation #12thBoard #ElectricPotentialAndCapacitance #PolarDielectric #NonPolarDielectric #DielectricConstant #PhysicsExplained #ElectrostaticEquilibrium #ElectricFlux #PhysicsStudy #BoardExamTips #ScienceShorts #ConceptLearning #ElectrostaticInduction #ElectrostaticField #ElectrostaticProtection #ElectrostaticEnergy #ElectricPotentialEnergy #EquipotentialSurface #PhysicsFormula #PhysicsTricks #PhysicsNotes #ElectrostaticConcept #ElectrostaticRevision #NCERTSolutions #arunsirScienceClass12 #PhysicsForBeginners #ElectrostaticDerivation #PhysicsSimplified #StudyPhysics #LearnPhysics #ElectrostaticsHindi #PhysicsMotivation #ElectrostaticForce #Physics2025 #PhysicsWithArunSir #CapacitorConcept #PhysicsTopic #ElectrostaticPhysics #ElectrostaticsLecture #ElectrostaticTheory #PhysicsChapter2 #PhysicsExperiment #ScienceBoardExam #PhysicsStudyTips #NCERTChapter2 #PhysicsMCQ #PhysicsNumericals #ElectricFieldConcept #ElectrostaticPotential #PhysicsFormulaSheet #ElectrostaticPotentialEnergy #ElectrostaticFieldEffect #ElectrostaticShield #ScienceAndTechnology #BoardExamPreparation #PhysicsForJEE #