Current Electricity

This topic covers concepts, such as Electric Current, Classification of Materials, Insulators, Semiconductors, Superconductors, Charge Flown when Current is Constant, Charge Flown when Current is Variable, Potential Difference, etc.

This topic covers concepts, such as Resistance, Resistivity, Resistance of a Wire, Resistance of a Wire of Uniform Cross-section, Resistance of a Wire of Non Uniform Cross-section, Resistance of a Cylindrical Shell between its Ends, etc.

This topic covers concepts, such as Electric Circuit, Ohm's Law, Ohm's Law in Vector Form, Microscopic View of Electric Current, Average Velocity of Electron in the Absence of Electric Field, Relaxation Time of Electron, Drift Velocity, etc.

This topic covers concepts, such as Temperature Effect on Resistivity, Temperature Versus Resistivity for Insulators, Temperature Coefficient of Resistivity, Explanation for Positive Temperature Coefficient of Resistivity of Conductor, etc.

This topic covers concepts, such as Joule's Law of Heating, Application of Joule’s Heating Effect, Electric Heater, Fuse, Electric Power, Power Supplied by a Battery, Power Consumed by a Battery, Rating of Electric Bulb, etc.

This topic covers concepts, such as Kirchhoff's Law, Kirchhoff's First Law, Kirchhoff's Second Law, Earthing in Electric Circuit, Methods of Finding Current in Simple Circuit, Method to Solve Complex Circuit Using Kirchhoff's Law, etc.

This topic covers concepts, such as Combination of Resistors, Series Combination of Resistors, Distribution of Potential Difference among Resistors in Series, Equivalent Resistance in Series Combination, etc.

This topic covers concepts, such as Electric Cell, Primary Electric Battery, Secondary Electric Battery, Electromotive Force, Emf of an Electric Battery, Internal Resistances of Cell, Determination of Internal Resistance of a Cell, etc.

This topic covers concepts, such as Grouping of Cells, Parallel Grouping of Cells, Series Grouping of Cells, and Mixed Grouping of Cells.

This topic covers concepts, such as Electrical Instruments, Wheatstone Bridge, Balanced Wheatstone Bridge, Unbalanced Wheatstone Bridge, and Sensitivity of Wheatstone Bridge.

This topic covers concepts, such as Meter Bridge, Construction of Meter Bridge, Sensitivity of Meter Bridge Experiment, Precautions While Using Meter Bridge, Limitation of Meter Bridge, Post Office Box, etc.

This topic covers concepts, such as Potentiometer, Principle of Potentiometer, Conditions for No Balanced Point in Potentiometer, To Find EMF of an Unknown Battery Using Potentiometer, Advantages of Potentiometer Over Voltmeter, etc.

This topic covers concepts, such as Shunting and Shunt Resistance, Ammeter, Conversion of Galvanometer into an Ammeter, Conversion of an Ammeter to a Higher Range Ammeter, Sensitivity of Ammeter, Voltmeter, Sensitivity of Voltmeter, etc.