Current Electricity

This topic covers the concept of Electric Current.

This topic covers the concept of Conductors.

This topic covers concepts, such as Potential Difference, Ohm's Law, Resistance, Resistance of a Wire, Resistivity, Electric Current Density and Ohm's Law in Vector Form.

This topic covers concepts, such as Average Velocity of Electron in the Absence of Electric Field, Acceleration of Electron in an Electric Field, Average Velocity of Electron in the Presence of Electric Field, Relaxation Time of Electron, etc.

This topic covers concepts, such as Ohmic Resistance and Non-Ohmic Resistance.

This topic covers concepts, such as Materials, Classification of Materials, Insulators, Semiconductors, Resistivity of Various Materials, Types of Resistors, Wire Bound Resistors and Carbon Resistors.

This topic covers concepts, such as Color Code of Carbon Resistor and Tolerance of Carbon Resistor.

This topic covers concepts, such as Temperature Effect on Resistivity, Resistivity versus Temperature for Conductor, Resistivity versus Temperature for Alloy (Nichrome) and Resistivity versus Temperature for Semiconductor.

This topic covers concepts, such as Electric Power, Heat Produced in an Electrical Resistance and Power Transmission.

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, Electromotive Force, Internal Resistances of Cell, Difference between Emf of Cell and Potential Difference across Cell, Potential Difference across Battery Terminal in Open Circuit, etc.

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

This topic covers concepts, such as Kirchhoff's Law, Kirchhoff's First Law, Kirchhoff's Second Law, Method to Solve Complex Circuit Using Kirchhoff's Law and Finding Potential Difference between Two Points in an Electrical Circuit.

This topic covers concepts, such as Wheatstone Bridge, Balanced Wheatstone Bridge and Unbalanced Wheatstone Bridge.

This topic covers the concept of Meter Bridge.

This topic covers concepts, such as Potentiometer, To Find EMF of an Unknown Battery Using Potentiometer, To Compare EMFs of Two Unknown Batteries Using Potentiometer and To Find Internal Resistance of an Unknown Battery Using Potentiometer.