Electrical Circuits

Understand the components and function of electrical circuits.

Sample Cards

Electrical Circuit

A complete path that allows electric current to flow.

Series Circuit

A type of circuit where components are connected end-to-end, forming a single path for current flow.

Parallel Circuit

A type of circuit where components are connected across common points, creating multiple paths fo...

Current

The flow of electric charge through a conductor.

Switch

The component used to open or close a circuit, controlling the flow of current.

Voltage

The pressure from an electrical circuit’s power source that pushes charged electrons (current) th...

Resistor

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

Electrical Power

The rate, per unit time, at which electrical energy is transferred by an electric circuit (P = V ...

Electrical Circuits Flashcards

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Electrical Circuit

A complete path that allows electric current to flow.

A complete path that allows electric current to flow.

Electrical Circuit

Series Circuit

A type of circuit where components are connected end-to-end, forming a single path for current flow.

A type of circuit where components are connected end-to-end, forming a single path for current flow.

Series Circuit

Parallel Circuit

A type of circuit where components are connected across common points, creating multiple paths for current.

A type of circuit where components are connected across common points, creating multiple paths for current.

Parallel Circuit

Current

The flow of electric charge through a conductor.

The flow of electric charge through a conductor.

Current

Switch

The component used to open or close a circuit, controlling the flow of current.

The component used to open or close a circuit, controlling the flow of current.

Switch

Voltage

The pressure from an electrical circuit’s power source that pushes charged electrons (current) through a conducting loop.

The pressure from an electrical circuit’s power source that pushes charged electrons (current) through a conducting loop.

Voltage

Resistor

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

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

Resistor

Electrical Power

The rate, per unit time, at which electrical energy is transferred by an electric circuit (P = V × I).

The rate, per unit time, at which electrical energy is transferred by an electric circuit (P = V × I).

Electrical Power

Circuit Breaker

A safety device designed to protect an electrical circuit from damage caused by an overload or short circuit.

A safety device designed to protect an electrical circuit from damage caused by an overload or short circuit.

Circuit Breaker

Grounding

A direct physical connection to the earth, a connection to a particular point in an electrical or electronic circuit, or an indirect connection that operates through capacitance or induction.

A direct physical connection to the earth, a connection to a particular point in an electrical or electronic circuit, or an indirect connection that operates through capacitance or induction.

Grounding

Resistance in Circuits

The opposition that a substance offers to the flow of electric current (More resistance in series, lesser resistance in parallel).

The opposition that a substance offers to the flow of electric current (More resistance in series, lesser resistance in parallel).

Resistance in Circuits

Capacitor

A device used to store an electric charge, consisting of one or more pairs of conductors separated by an insulator.

A device used to store an electric charge, consisting of one or more pairs of conductors separated by an insulator.

Capacitor

Insulation

Material used to insulate electrical wires and connectors from each other and from grounding surfaces.

Material used to insulate electrical wires and connectors from each other and from grounding surfaces.

Insulation

Short Circuit

When an electrical circuit has zero resistance, causing the current to increase to infinity.

When an electrical circuit has zero resistance, causing the current to increase to infinity.

Short Circuit

Fuse

A protective device that blows or breaks when the current flowing through it exceeds its maximum safe level.

A protective device that blows or breaks when the current flowing through it exceeds its maximum safe level.

Fuse

Circuit Diagrams and Schematic Symbols

Pictorial representations used to simplify complex circuits and systems in visual format.

Pictorial representations used to simplify complex circuits and systems in visual format.

Circuit Diagrams and Schematic Symbols

Multimeter

A device used to measure voltage, current, and resistance in an electrical circuit.

A device used to measure voltage, current, and resistance in an electrical circuit.

Multimeter

Diode

A semiconductor device with two terminals, allowing the flow of current in one direction only.

A semiconductor device with two terminals, allowing the flow of current in one direction only.

Diode

Transistor

A semiconductor device used to amplify and switch electronic signals and electrical power.

A semiconductor device used to amplify and switch electronic signals and electrical power.

Transistor

Inductance

The property of a conductor by which a change in current in the conductor creates a voltage in both the conductor and in any nearby conductors.

The property of a conductor by which a change in current in the conductor creates a voltage in both the conductor and in any nearby conductors.

Inductance

Relay

An electrically operated switch that opens or closes circuits when another voltage is applied.

An electrically operated switch that opens or closes circuits when another voltage is applied.

Relay

AC vs. DC Circuits

AC circuits alternate in direction, and DC circuits move in one direction. Used throughout the world for various applications in electrical systems.

AC circuits alternate in direction, and DC circuits move in one direction. Used throughout the world for various applications in electrical systems.

AC vs. DC Circuits

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AC and DC Currents

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