Study of the behavior of electric charges and magnetic forces, and the development of technologies based on these principles.
Electric Charge: The fundamental property of matter that determines the attractive or repulsive forces between objects.
Electric Fields: The regions around charged objects where electric forces are felt.
Coulomb's Law: The mathematical formula that describes the force between two charged objects.
Electric Potential: The amount of work needed to move a charge from one point to another in an electric field.
Electric Current: The flow of electric charge through a conductor.
Ohm's Law: The relationship between current, voltage, and resistance in a circuit.
Electrical Power: The rate at which electrical energy is transferred or used.
Magnets: Objects that create a magnetic field.
Magnetic Fields: The regions around magnets where magnetic forces are felt.
Magnetic Induction: The production of a magnetic field in a material by a changing electric current.
Electromagnetic Waves: Waves of energy that consist of oscillating electric and magnetic fields.
Electromagnetism: The study of the relationship between electricity and magnetism.
Maxwell's Equations: The set of four equations that describe the behavior of electromagnetic fields.
Applications of Electricity and Magnetism: Various areas of technology that rely on the principles of electromagnetism, such as electric motors, generators, transformers, and telecommunications.
Coulomb's Law: This law describes the force between two charged particles, based on the magnitude and sign of their charges, and the distance between them.
Electric Field: An electric field is a region of space around a charged particle or object, in which a test charge would experience a force.
Gauss's Law: This law relates the electric flux through a closed surface to the enclosed charge, and can be used to calculate electric fields due to charges in that enclosed region.
Electric Potential: Electric potential is the potential energy of a test charge due to its position in an electric field, and is related to voltage.
Capacitance: Capacitance is the ability of an object or material to store electrical energy in an electric field, and is measured in farads.
Current and Resistance: Current is the flow of electric charge in a circuit, measured in amperes, and resistance is the opposition of a material or component to the flow of current, measured in ohms.
Ohm's Law: This law states that the current through a material is directly proportional to the voltage across it, and inversely proportional to its resistance.
Magnetism: Magnetism is the property of certain materials that causes them to attract or repel other magnets, due to their alignment of domains and spin of their electrons.
Magnetic Fields and Forces: A magnetic field is a region of space around a magnet, in which a magnetic force can act on a magnet or magnetic material.
Electromagnetic Induction: This phenomenon describes how a changing magnetic field can induce an electric current in a conducting material, in accordance with Faraday's Law.
Maxwell's Equations: These equations describe the relationships between electric and magnetic fields, and their corresponding charges and currents, and are notable for predicting electromagnetic waves.
Electromagnetic Waves: Electromagnetic waves are transverse waves that propagate through space, carrying energy through their electric and magnetic fields, at a speed of approximately 3 x 10^8 meters per second.