Basic Electrical Concepts

Parallel circuit

• A circuit where components are arranged in a single path for current flow.

• A circuit in which the components are arranged so that the current can flow along multiple paths.

• A circuit that only allows current to flow in one direction.

• A circuit that has no components connected to it.

Circuit breaker

• A device that amplifies electrical signals.

• An electromechanical safety device that automatically interrupts the flow of electric current in a circuit when it exceeds a safe limit.

• A type of fuse that can be reset after it blows.

• A device used to measure electrical resistance.

Safety switch (RCD)

• Residual current devices (RCDs) are the single most effective measure to prevent electrocution, serious electrical injury and electrical fire.

• Residual current devices (RCDs) are primarily used to enhance electrical efficiency in appliances.

• Residual current devices (RCDs) are designed to increase the voltage in electrical circuits.

• Residual current devices (RCDs) are used to protect against power surges and fluctuations.

Circuit

• A closed path through which an electric current flows or may flow.

• A device that stores electrical energy.

• A type of resistor used in electrical circuits.

• A method of measuring electrical resistance.

Load

• An electrical component that generates electric power.

• An electrical component or portion of a circuit that consumes electric power.

• A device that stores electric energy for later use.

• An electrical component that regulates voltage in a circuit.

Series circuit

• A circuit where components are arranged in parallel, allowing current to branch off.

• A circuit in which the components are arranged end to end so that the current flows through each component without branching.

• A circuit that only allows current to flow in one direction.

• A circuit that includes a battery and a light bulb but no resistors.

Voltage

• The difference in electric potential between two points, measured in volts.

• The flow of electric charge in a circuit.

• The resistance offered by a material to the flow of current.

• The amount of energy stored in a battery.

Fuse

• A device that stores electrical energy for later use

• A metal wire that melts to break the circuit when current exceeds a safe limit

• A type of switch that controls the flow of electricity

• A component that increases the voltage in a circuit

Resistance

• A measure of the opposition to current flow in an electrical circuit, measured in ohms.

• A type of electrical charge that flows through a conductor.

• The total energy consumed by an electrical device over time.

• The speed at which electrical signals travel through a wire.

Electrical shock

• The experience of an electric current passing through the body.

• A sudden loss of electrical power.

• A type of electrical device used for safety.

• A method of generating electricity.