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Electricity

TermDefinition
Current (I) The flow of electric charge through a conductor, measured in amperes (amps, A).
Voltage (V) The difference in electrical potential energy that pushes current through a circuit, measured in volts (V)
Resistance (R) A material's opposition to the flow of current, measured in ohms (Ω).
Ohm's Law The equation V = I × R, describes the relationship among voltage, current, and resistance
Circuit A complete, closed path that allows electric current to flow.
Electricity The flow of electrical power or charge, resulting from the movement of tiny particles called electrons
Conductor A material that allows electric current to flow easily through it (e.g., copper).
Insulator A material that resists the flow of electric current (e.g., rubber, plastic).
Ampere (Amp, A) The unit used to measure electric current.
Volt (V) The unit used to measure voltage.
Ohm (Ω) The unit used to measure resistance.
Closed circuit A circuit with no gaps, allowing current to flow continuously
Open circuit A circuit with a break or gap, so current cannot flow.
Short circuit An unintended low-resistance path that causes excess current to flow.
Series circuit A circuit with only one path for current; components are connected end to end.
Parallel circuit A circuit with two or more paths for current to travel.
Conventional current The model of current flow as moving from the positive to the negative terminal.
Electron flow The actual direction electrons move, from the negative to the positive terminal.
Direct current (DC) Electric current that flows in only one direction.
Alternating current (AC) Electric current that reverses direction periodically.
Created by: maria.montalvo13
 

 



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