Question
Which electrical component gives out light when a current flows through them in one direction?
Answer
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Evelyn
Master · Tutor for 5 years
Answer
Light Emitting Diode (LED)
Explanation
This question relates to electrical circuits and its components. Electrical component which emits light when current is allowed to flow through them is a key concept in electronics, specifically in Optoelectronics - a sub-discipline of Chemistry and Physics. This particular component is known as Light Emitting Diode, abbreviated as LED, they work on the principle photon generation by the recombinations of electron-hole pairs in its semiconductor material when a forward-bias(I.e., current flowing in one direction) is applied across its junction.