#2 CLASS - 10th, Science Ch - 11|| ELECTRICITY || New NCERT || CBSE || BY ANJUL CHAUDHARY
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Welcome to ELECTRICITY from the Sankalp Career Vision tailored for Class 10 CBSE 2025 students! In this comprehensive lesson, our expert educator Anjul Chaudhary delves deep into the fundamental concepts of electricity Whether you're gearing up for exams or aiming for a solid understanding, this lesson is your ultimate guide.
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Key terms and concepts :
Electric Current: The flow of electric charge through a conductor. Measured in amperes (A). Current is the rate of flow of charge
Electric Circuit: A continuous and closed path through which electric current flows. Includes components like cells, wires, switches, and loads.
Conductors and Insulators: Conductors allow electric current to flow easily (e.g., copper, iron), while insulators resist current flow (e.g., glass, rubber).
Electric Potential and Potential Difference:
Electric potential: work done to bring a unit positive charge from infinity to a point.
Potential difference (Voltage): difference in electric potential between two points; necessary for current flow. Measured in volts (V).
Ohm's Law: The current through a conductor between two points is directly proportional to the voltage across the two points, V=IR, where
Resistance: Opposition to the flow of electric current, measured in ohms (Ω). Depends on material, length, area, and temperature of the conductor.
Series and Parallel Circuits:
Series: Components connected end-to-end, current same through all, voltage divides.
Parallel: Components connected across the same voltage, current divides.
Electric Power and Energy:
Power: Rate at which electrical energy is consumed,
P=VI, measured in watts (W).
Energy: Work done, measured in joules (J) or kilowatt-hours (kWh).
Heating Effect of Current: Electrical energy converted into heat in a conductor, applied in devices like electric heaters, bulbs, fuses.
Electric Charge: Property of matter responsible for electric phenomena; measured in coulombs (C).
Current Rating: Maximum current that an appliance can safely carry without damage.
These cover the core concepts essential for understanding electricity in Class 10 science.
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