Electric Charge
A property that causes subatomic particles such as protons and electrons to attract or repel each other.

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Electric ForceThe force of attraction or repulsion between electrically charge objects.
Electric FieldThe effect an electric charge has on other charges in the space around it.
Static ElectricityThe study of the behavior of electric charges, including how charge is transferred between objects.
Law of Conservation of ChargeThe total charge in an isolated system is constant.
Electric CurrentContinuous flow of electric charge.
Direct CurrentCharge flows only in one direction.
Alternating CurrentFlow of electric charge that regularly reverses its direction.
Electrical ConductorMaterial through which charge can flow easily.
Electrical InsulatorA material through which charge cannot flow easily.
ResistanceOpposition to the flow of charges in a material
SuperconductorA material that has almost 0 resistance when it is cooled to low temperatures.
Potential DifferenceThe difference in electrical potential energy between two places in an electric field, also called voltage.
BatteryA device that converts chemical energy to electrical energy.
Ohm's LawV = I * R
Electric CircuitA complete path through which charge can flow.
Series CircuitCharge has only one path through which it can flow.
Parallel CircuitAn electric circuit with two or more paths through which charges can flow.
Electric PowerThe rate at which electrical energy is converted to another form of energy.
FusePrevents current overload in a circuit.
Circuit BreakerA switch that opens when current in a circuit is too high.
GroundingThe transfer of excess charge through a conductor to Earth.
ElectronicsInformation sent as patterns in the controlled flow of electrons through a circuit.
Analog SignalA smoothly varying signal produced by continuously changing the voltage or current in a circuit.
Digital SignalEncodes information as a string of 1's and 0's.
SemiconductorA crystalline solid that conducts current only under certain conditions.
DioideA solid-state component that combines an n-type and p-type semiconductor.
TransistorA solid-state component with three layers of semiconductors.
Integrated CircuitA thin slice of silicon that contains many solid-state components.

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ComputerA programmable device that can store and process information.