Circuit Symbols Flashcards by Lucy O'shea | Brainscape

Q

Switch (open)

A

Circuit is broken so no current flows

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Q

Switch (closed)

A

Circuit is complete and so current flows

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Q

Cell

A

Supplies the electrical energy to the circuit

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Q

Battery

A

More than 1 cell

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Q

Filament lamp (bulb)

A

Converts electrical energy —> light energy

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Q

Voltmeter

A

Used to measure voltage (potential difference)

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Q

Ammeter

A

Used to measure electrical current

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Q

Fixed resistor

A

Resists the flow of electrical current

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Q

Variable resistor

A

Used to control current

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Q

LDR

A

Converts light —-> electrical resistance

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Q

Thermistor

A

Converts heat —> electrical resistance

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