Resistivity & Resistance per Unit Length of a Wire | Class 12 PU Board Physics Lab Experiment скачать в хорошем качестве

Resistivity & Resistance per Unit Length of a Wire | Class 12 PU Board Physics Lab Experiment

🔬 Welcome to Physics Mestru! In this video, we perform and explain the *Class 12 PU Board Physics Lab Experiment* to determine the *resistivity of the material of a given wire* and its **resistance per unit length**. This experiment is prescribed as per the *Karnataka PU Board (PUC) Physics Practical syllabus* and is very important for **lab exams, record writing, and viva preparation**. 📚 Aim of the Experiment: • To determine the *resistivity (ρ)* of the material of a given wire • To find the *resistance per unit length* of the wire 🧪 Apparatus Used: • Given wire • Metre scale • Screw gauge • Ammeter and voltmeter • Rheostat • Key and connecting wires • DC power supply 📐 Theory Covered: • Ohm’s Law • Relation between resistance and length • Formula: *R = ρl / A* • Resistivity of a conductor • Resistance per unit length (R / l) 🧮 Procedure Explained: • Measurement of length and diameter of the wire • Calculation of area of cross-section • Observation of current and voltage • Graphical and calculation method • Final result and unit analysis 📌 Additional Inclusions: • Observation table format • Formula derivation • Precautions to be taken • Sources of error • Viva-voce questions and answers 🎯 Ideal for: • Class 12 PUC Physics students • PU Board practical exam preparation • Record writing and viva revision • Teachers and lab instructors 👍 LIKE, SHARE & SUBSCRIBE to Physics Mestru for more **Class 12 Physics lab experiments, viva questions, and exam-oriented explanations**. 🛎️ Turn on notifications so you don’t miss upcoming **PU Board practical videos**. #Resistivity #PhysicsLabExperiment #PUBoardPhysics #Class12PUC #CurrentElectricity #OhmsLaw #PhysicsPractical #ResistancePerUnitLength #PhysicsMestru