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CGP GCSE Physics > Light-Emitting Diodes are Really Useful > Flashcards

Light-Emitting Diodes are Really Useful Flashcards

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1
Q

What does LED stand for?

A

Light-emitting diode

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2
Q

When do LEDs emit light?

A

When a current flows through them in a forward direction

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3
Q

What are they used for?

A

The numbers in digital clocks, in traffic lights and in remote controls

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4
Q

How are they different from a light bulb?

A

They don’t have a filament that can burn out

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CGP GCSE Physics (237 decks)

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