10TH PHYSICS* ELECTRICITY* CONDUCTORS & NON-CONDUCTORS* తెలుగు /English

Understand how electric current flows through conductors and why certain materials allow electricity to pass while others do not. This detailed science lesson explains conductors and non-conductors from the microscopic level. Through diagrams, animations and circuit examples, the video shows how free electrons behave inside a conductor and how their movement produces electric current. The lesson begins with a simple battery-and-bulb experiment to demonstrate the difference between conducting and non-conducting materials. It then explores the scientific model of electrical conduction, including the contribution of Drude and Lorentz to our understanding of electron movement in metals. Topics covered in this video: • Meaning of conductors and non-conductors • Examples of conducting and insulating materials • Testing materials using a battery-and-bulb circuit • Free electrons inside metallic conductors • Positive ions and electron movement • Drude–Lorentz model of electrical conduction • Electric current as the rate of flow of charge • Formula for electric current: I = Q/t • Direction of electron flow • Conventional direction of electric current • Random motion of electrons in a conductor • Effect of an electric field on free electrons • Meaning of drift velocity • Cross-sectional area of a conductor • Number density of charge carriers • Relationship between current and drift velocity • Derivation and meaning of I = nqAvₙ • Why current direction is opposite to electron flow • Role of the charge and drift-velocity signs • Charge of an electron Electric current is defined as the amount of electric charge crossing a conductor’s cross-section per unit time. In a metallic conductor, free electrons normally move randomly. When a potential difference is applied, they acquire a small average drift velocity and produce a measurable electric current. The relation I = nqAvₙ connects electric current with the number density of charge carriers, charge on each carrier, cross-sectional area of the conductor and drift velocity. This video is useful for Class 10, intermediate and introductory physics students who want to understand electric current beyond basic circuit diagrams. It is also helpful for exam preparation, conceptual revision and building a strong foundation for electricity, current density and semiconductor topics. Subscribe to EZYGURU for more clear, visual and student-friendly lessons in Science, Mathematics, Technology and Artificial Intelligence. #ElectricCurrent #Conductors #NonConductors #DriftVelocity #Electricity #ElectronFlow #CurrentDirection #Physics #ScienceEducation #EZYGURU conductors and non-conductors, conductors and insulators, electric conductors, non-conductors of electricity, electrical insulators, electric current in conductors, electric current explained, flow of electric charge, free electrons in metals, electron flow in conductor, movement of electrons, conventional current direction, electron flow direction, direction of electric current, drift velocity, drift velocity explained, drift velocity derivation, current and drift velocity, I equals nqAvd, I = nqAvd, current density, charge carriers, number density of electrons, cross-sectional area of conductor, electric current formula, I equals Q by t, I = Q/t, rate of flow of charge, Drude model, Lorentz model, Drude Lorentz theory, Drude Lorentz model of electrical conduction, metallic conductor, electrical conduction in metals, positive ions in metals, random motion of electrons, electric field in conductor, potential difference, battery and bulb experiment, conductor tester circuit, testing conductors and insulators, conductor non-conductor experiment, why bulb glows, why bulb does not glow, charge of electron, conventional current vs electron flow, current through a wire, microscopic view of electric current, electricity physics, physics electricity chapter, electricity for beginners, Class 10 electricity, Class 10 science, intermediate physics, current electricity, electric current Telugu explanation, physics Telugu, science Telugu, English concepts Telugu explanation, EZYGURU Conductors, Non-Conductors, Electric Current, Drift Velocity, Electron Flow, Conventional Current, Current Direction, I=nqAvd, Current Formula, Charge Carriers, Free Electrons, Drude Model, Lorentz Model, Electrical Conduction, Conductors and Insulators, Current Electricity, Class 10 Science, Physics, Telugu Explanation, EZYGURU