Electricity Class 10 full chapter (Animation) | Class 10 Science Chapter 12 | CBSE | NCERT
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Chapter 3 of class 10 Physics covers electricity, including concepts like charges, current flow, resistivity, and electrical circuits, with practical examples and applications discussed in detail. The chapter emphasizes understanding electric current, resistance, and power calculations, as well as the differences between series and parallel combinations in electric circuits for effective transmission and utilization of electricity.
Insights
Electric current is the flow of charges in a material, measured in coulombs, with electrons having -1.6 * 10^-19 C and protons +1.6 * 10^-19 C, and 6.25 * 10^18 electrons in 1 coulomb of charge.
Resistivities of metals and alloys range from 10^-8 to 10^-6 Ohm meter, making them good conductors, while non-metals and insulators have resistivities ranging from 10^12 to 10^Ohm meter, making them poor conductors. Copper and aluminum are used for electrical transmission due to their low resistivities.