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Electrical vocab


Amp a unit of electrical current equal to a flow of one coulomb per second.
Voltage an electromotive force or potential difference expressed in volts.
Ohm the SI unit of electrical resistance, expressing the resistance in a circuit transmitting a current of one ampere when subjected to a potential difference of one volt.
Resistor a device having a designed resistance to the passage of an electric current.
Parallel circuit a closed circuit in which the current divides into two or more paths before recombining to complete the circuit.
Series circuit a closed circuit in which the current follows one path.
Capacitor a passive two-terminal electronic component that stores electrical energy in an electric field.
Ohm's law the current through a conductor between two points is directly proportional to the voltage across the two points.
AC current an electric current which periodically reverses direction.
DC current an electrical current that flows in one direction.
Watt he SI unit of power, equivalent to one joule per second, corresponding to the power in an electric circuit in which the potential difference is one volt and the current one ampere.
Circuit a system of electrical conductors and components forming a complete and closed path.
Electrical ground an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth.
Conductor a material or device that conducts or transmits heat, electricity, or sound, especially when regarded in terms of its capacity to do this.
Insulator a substance which does not readily allow the passage of heat, sound, or electricity.
Joules the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force, equivalent to one 3600th of a watt-hour.
Coulomb the SI unit of electric charge, equal to the quantity of electricity conveyed in one second by a current of one ampere.
Resistance the opposition that a substance offers to the flow of electric current.
Transistor a semiconductor device with three connections, capable of amplification in addition to rectification.
Hertz the SI unit of frequency, equal to one cycle per second.
Created by: xXExtremeBobXx