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Electromagnetic Induction Definition of induction: Electromagnetic induction is the process of generating e.m.f. (voltage) in a conductor exposed to a changing magnetic field. Definition of induction: Electromagnetic induction is the process where a voltage—also known as electromotive force (e.m.f.)—is created in a wire or conductor. This happens when the wire is placed in a magnetic … Read more

Transformer Structure Basic function: A transformer uses electromagnetic induction to increase (step-up) or decrease (step-down) AC voltage. Basic function: A transformer is a special electrical device that uses a process called electromagnetic induction to change the voltage of alternating current (AC). It can either increase the voltage (this is called a step-up transformer) or decrease … Read more

Electromotive Force (e.m.f.) (ε) Definition of e.m.f.: Electromotive force is the total energy supplied by a source to move one coulomb of charge around a complete circuit. Definition of e.m.f.: Electromotive force (e.m.f.) is the total amount of energy that a power source, like a battery, gives to one coulomb of electric charge to make … Read more

Electrical Energy (E) Definition of electrical energy: Electrical energy is the capacity to do work through the movement of electric charge. Definition of electrical energy: Electrical energy is the ability or capacity of electric charges—tiny particles that make up electricity—to do work. This work happens when the charges move through a conductor like a wire … Read more

Magnetic Field Patterns Current creates field: A magnetic field forms around a conductor when current flows through it. Current creates field: When electric current starts to flow through a conductor, like a wire, it automatically creates a magnetic field around it. This magnetic field is invisible but can affect magnetic materials and other currents nearby. … Read more

Electric Fields Electric field definition: An electric field is the space where a charged particle experiences an electric force due to other charges. Electric field definition: An electric field is an invisible area or region around a charged object where other charged particles can feel a push or pull. This push or pull is called … Read more

Resistance Resistance definition: Resistance is the measure of how much a material opposes the flow of electric current. Resistance definition: Resistance is a way to describe how much a material tries to stop electricity from flowing through it. If a material has high resistance, it is harder for electric current to pass through. If it … Read more

Core Concept and Pressure Transmission Definition of Pascal’s Principle: Pressure applied to a confined fluid is transmitted equally and undiminished throughout the fluid and to the container walls. Definition of Pascal’s Principle: Pascal’s Principle says that when you press on a fluid that is trapped in a closed space, the pressure you create is passed … Read more

Core Concept Definition of principle: An object immersed wholly or partially in a fluid experiences an upward buoyant force. Definition of principle: Archimedes’ Principle tells us that when you place an object in a fluid—like water or air—the fluid pushes up on the object. This push is called the buoyant force. The object could be … Read more

Core Concept Definition of principle: As the speed of a fluid increases, the pressure within the fluid decreases, and vice versa. Definition of principle: Bernoulli’s Principle explains what happens to pressure when a fluid like air or water speeds up or slows down. When the fluid moves faster, its pressure becomes lower. When the fluid … Read more