Electricity 1
an invisible force field surrounding electric charges, defining the region where another charge would experience an electric force
What is Electric Field
an invisible area of force surrounding magnets, electric currents, or changing electric fields, where magnetic forces can be detected, exerting influence on other magnets, moving charges, and magnetic materials like iron
What is Magnetic Field
an electric current where the flow of charge is unidirectional, moving steadily in one constant direction from the negative to the positive terminal
What is Direct Current
the rate at which work is done or energy is transferred over time
What is Power
a device that converts mechanical energy into electrical energy by using the principle of electromagnetic induction
What is a Generator
What is a Electromagnet
a tiny, microscopic region within a magnetic material (like iron) where the magnetic fields of individual atoms all point in the same direction, acting like tiny, internal magnets
what is Magnetic Domain
an electric current that periodically reverses direction, meaning it flows back and forth
What is Alternating Current
the SI base unit for electric current, representing the rate of electric charge flow
What is Ampere
a device that converts electrical energy into mechanical energy, typically rotational motion
What is a Motor
a passive device that transfers electrical energy between two or more circuits through electromagnetic induction, changing the voltage and current levels
What is a Transformer
the two opposite points on a magnet (or planet/star) where the magnetic field is strongest
a changing magnetic field creates (induces) an electromotive force (voltage) in an electrical conductor, which can then drive an electric current
What is electromagnetic induction
the SI unit of electrical resistance, measuring how much a material opposes the flow of electric current
What is Ohm
the energy needed to move a unit of electric charge between two points in an electric field
What is Potential Difference
a material with a high resistance to the flow of electric current and heat because its electrons are tightly bound to their atoms and cannot move freely
What is an Insulator
a passive electrical component designed to provide controlled opposition (resistance) to electric current flow, limiting it to protect circuits, set operating conditions (voltage/current division), and manage power in electronic devices
What is a Resistor
the single resistance value that can replace a complex network of resistors in an electric circuit, producing the exact same total current flow and voltage drop as the original combination
What is Equivalent Resistance
the SI unit for electric potential, potential difference, or electromotive force (EMF), representing the energy per unit charge that drives electric current
What is Volt
an electrical circuit where components (like resistors, bulbs, or batteries) are connected end-to-end, forming a single, continuous path for electric current to flow
What is Series Circuit
a material that allows for the free flow of electric charge, such as electrons, through its structure
What is a Conductor
the generation of an electromotive force (voltage) or current in a conductor due to a changing magnetic field
What is Induction
the electric potential difference between two points in a circuit, representing the energy per unit charge to move a charge between those points
What is Voltage
an electrical setup with multiple paths (branches) for current to flow, where components are connected across the same two points
What is Parallel Circuit
the energy transferred to or from an object by a force that causes a displacement
What is Work