chapter 20:electricity
Electric Circuit
is a complete path through which electric charge can flow.
Electric Current
is a continuous flow of electric charge.
Semiconductor
is a crystalline solid that conducts electric current only under certain conditions.
Battery
is a device that converts chemical energy into electrical energy.
Fuse
is a device that prevents overheating due to current in a circuit.
Electric Field
is a field in a region of space that exerts electric force on charged particles in a field produced by electric charges or by changing magnetic fields.
Alternating Current (AC)
is a flow electric charged that regularly reverses in direction.
Direct Current (DC)
is a flow of electric charge in only one direction.
Law of Conservation of Charge
is a law stating that the total electric charge in an isolated system is constant; electric charge is never created or destroyed.
Superconductor
is a material that has almost zero resistance when it is cooled to low temperatures.
Electrical Conductor
is a material through which electric charge can flow easily.
Electrical Insulator
is a material through which electric charge cannot flow easily.
Computer
is a programable device that can store and process information.
Electric Charge
is a property that causes subatomic particles sush as protons and electrons to attract or repel one another.
Digital Signal
is a signal that encodes information as a string of 1's and 0's.
Analog Signal
is a smooth varying signal produced by continuously changing the voltage or current.
Diode
is a solid-state component with a n-type semiconductor joined to a p-type semiconductor.
Transistor
is a solid-state component with three layers of semiconductor material, used to turn current on or off or to increase the strength of electronic signals.
Circuit Breaker
is a switch that opens when the current in a circuit is too high.
Integrated Circuit
is a thin slice of silicon that contains many solid-state components; a microchip.
Parallel Circuit
is an electric circuit which two or more paths through which charge can flow.
Series Circuit
is an electric circuit with only one path through which charge can flow.
Electronic Signal
is information sent as patterns in the controlled flow of electrons through a circuit.
Voltage
is potential difference, the difference in electric potential energy between two places in an electric field.
Electric Force
is the attraction or repulsion between electrically charged objects.
Resistance
is the opposition to the flow of electric charge in a material.
Electric Power
is the rate at which electrical energy is converted to another form of energy.
Ohm's Law
is the relationship of voltage, current, and resistance: V=IR.
Electronics
is the science of using electrical currents to process or transmit information.
Static Electricity
is the study of the behavior of electric changes, including how charge is transferred between objects.
Induction
is the transfer of charge without contract between materials.
Grounding
is the transfer of excess charge through a conductor to Earth.
Potential Difference
is voltage, or the difference in electric potential energy between two places in an electric field.