Electrical and Electronic Symbols

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Primary or secondary cell

A source of electrical energy, either a primary cell (non-rechargeable) or a secondary cell (rechargeable)

Powering electrical circuits

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Battery

A collection of one or more cells that store electrical energy

Providing portable power to devices

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AC supply

Alternating current supply

A power source that provides alternating current (AC) electricity

Supplying AC power to electrical systems

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Terminal

A point or connection for attaching wires or conductors

Making electrical connections

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Ammeter

A device that measures the electric current flowing through a circuit

Measuring current

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Voltmeter

A device that measures the potential difference (voltage) between two points in an electrical circuit

Measuring voltage

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Motor

A machine that converts electrical energy into mechanical energy

Providing rotational motion

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Junction of conductors

A point where two or more conductors meet or are connected

Joining conductors

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Double junction

A point where three or more conductors meet or are connected

Joining multiple conductors

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Crossing of conductors with no electrical connection

Two conductors that intersect or cross but are not electrically connected

Indicating physical crossing without electrical connection