Electricity Unit

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, as opposed to a parallel circuit where the circuit is divided into two or more paths.

Battery

a container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power.

Resistor

a device having a designed resistance to the passage of an electric current.

Electricity

a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.

Circuit

a roughly circular line, route, or movement that starts and finishes at the same place.

Volatage

an electromotive force or potential difference expressed in volts.

Coulomb

the SI unit of electric charge, equal to the quantity of electricity conveyed in one second by a current of one ampere.

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.

Volt

the SI unit of electromotive force, the difference of potential that would drive one ampere of current against one ohm resistance.

Watt

the 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.

Joule

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.

Heat

the quality of being hot; high temperature

Resistance

the refusal to accept or comply with something; the attempt to prevent something by action or argument.

Ohm's Law

A law relating the voltage difference between two points, the electric current flowing between them, and the resistance of the path of the current.

Conductor

A material through which electric current can pass. In general, metals are good conductors. Copper or aluminum is normally used to conduct electricity in commercial and household systems.

Semiconductor

a solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects. Devices made of semiconductors, notably silicon, are essential components of most electronic circuits.

Electron

a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.

Insulator

a thing or substance used for insulation, in particular.

Generator

a thing that generates something, in particular

Ampere

a unit of electric current equal to a flow of one coulomb per second.

Current

the time rate of flow of electric charge, in the direction that a positive moving charge would take and having magnitude equal to the quantity of charge per unit time: measured in amperes. ... Also called current, electricity.