Electricity And Magnetism

This section explores the interrelated concepts of electricity and magnetism, focusing on electric current, potential difference, circuits, and their practical applications.

Introduction To Electricity And Magnetism

Electricity is the flow of electric charge, and magnetism is the force exerted by magnets. Together, they underlie many technologies and natural processes.

Electric Current

Electric current is the flow of electric charge through a conductor, measured in Amperes and characterized by its direction from positive to negative.

Potential Difference

Potential difference measures the work done to move a unit charge in an electric field.

Electric Circuit

An electric circuit is a complete path through which electric current flows, consisting of various components.

Ohm’s Law

Ohm’s Law defines the relationship between current, voltage, and resistance in a conductor.

Resistance

Resistance is the opposition to the flow of electric current in a conductor, influenced by factors such as length, area, material, and temperature.

Series And Parallel Circuits

This section discusses series and parallel circuits, highlighting the differences in current and voltage behaviors, as well as calculating total resistance in both types of circuits.

Heating Effect Of Current

The heating effect of current refers to the generation of heat when an electric current passes through a resistor.

Magnetic Effect Of Current

This section explains the relationship between electric current and the magnetic field produced around it.

Electromagnet

An electromagnet is a temporary magnet created when electric current passes through a coil wound around a soft iron core.

Applications Of Electricity And Magnetism

This section explores the various applications of electricity and magnetism in everyday life and technology.