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EMF and potential difference |

In this lecture on PhysicsByDM, we explain the concepts of Electrical Power, Electromotive Force (EMF), and Potential Difference in a clear, conceptual, and exam-oriented manner according to the latest Class 12 Physics (Current Electricity) syllabus. These topics are fundamental for understanding electric circuits, energy consumption, batteries, and power systems. Mastering these concepts is essential for solving numericals, board exam questions, and MCQs. 🔹 Topics Covered in This Lecture: ✔ Definition of Electrical Power ✔ Formula of Electrical Power (P = VI, P = I²R, P = V²/R) ✔ Electric Energy and Its Units ✔ Kilowatt-hour (kWh) Concept ✔ What is Electromotive Force (EMF)? ✔ Difference Between EMF and Potential Difference ✔ Internal Resistance of a Cell ✔ Terminal Voltage ✔ Energy Supplied by a Source ✔ Important Numericals & Exam Tips 🎯 This Lecture is Helpful For: ✅ Class 12 Physics students ✅ FBISE / PECTAA ✅ Pre-Engineering students ✅ Board Exam Preparation ✅ Entry Test & MCQs Practice 📌 Watch till the end for strong conceptual clarity, derivations, and exam-focused problem-solving techniques. 👍 Like | 💬 Comment | 🔔 Subscribe to PhysicsByDM for complete Current Electricity & Chapter-wise Physics lectures. 🔖 Professional Hashtags for Maximum Reach & Channel Growth: #ElectricalPower #ElectromotiveForce #PotentialDifference #EMF #Class12Physics #PhysicsByDM #CurrentElectricity #ElectricEnergy #InternalResistance #TerminalVoltage #OhmsLaw #ElectricCircuits #PhysicsConcepts #PhysicsLectures #FBISEPhysics #PECTAAPhysics #PreEngineering #BoardExams #EntryTestPreparation #NumericalsPhysics #MCQsPhysics #LearnPhysics #OnlinePhysics #STEMEducation #PhysicsStudents #ExamPreparation #ScienceEducation #physics #physicsbydm #newsyllabus #electrostatics #measurement #education #physicstheory #physicalquantities #part1