Tag: CBSE PHYSICS
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Expression for Fringe Width in Young’s Double Slit Experiment
Learn the step-by-step derivation of the expression for fringe width in Young’s double slit experiment. Understand the path difference, positions of bright and dark fringes, and the important relation β = λD/d, along with its dependence on wavelength, screen distance and slit separation.
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Combination of Cells: Series and Parallel
Learn how cells are combined in series and parallel to obtain the required emf, current capacity, and internal resistance. Understand the formulas, equivalent circuits, conditions for maximum current, and common mistakes with clear diagrams and solved examples.
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Electrical Power and Energy: Worked Numericals
Master electrical power and energy numericals with step-by-step worked examples covering power, electrical energy, voltage, current, resistance, and commercial units of electricity. Ideal for CBSE Class 10 and 12 Physics students.
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Temperature Dependence of Resistance and Resistivity
Learn how temperature affects resistance and resistivity in metals and semiconductors, including temperature coefficients, electron scattering, carrier concentration, key formulas, and practical applications.
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V-I Characteristics: Ohmic and Non-Ohmic Conductors
Explore the fundamental differences in V–I characteristics between Ohmic and non-Ohmic conductors. Learn how components like tungsten filament bulbs, semiconductor diodes, and hysteresis loops behave under varying voltages through clear diagrams, dynamic vs. static resistance concepts, and key graphical takeaways.
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