AC circuits 1) The letters LED stand for Light Emitting Diode. Explain what this

Question

AC circuits
1) The letters LED stand for Light Emitting Diode. Explain what this means
2) The LED in an experiment is a two color LED. What would you expect the oscilloscope trace to look like if a single color LED were to have been used? AC circuits
1) The letters LED stand for Light Emitting Diode. Explain what this means
2) The LED in an experiment is a two color LED. What would you expect the oscilloscope trace to look like if a single color LED were to have been used? AC circuits
1) The letters LED stand for Light Emitting Diode. Explain what this means
2) The LED in an experiment is a two color LED. What would you expect the oscilloscope trace to look like if a single color LED were to have been used?

Explanation / Answer

1)

Light emitting diode is a p-n junction diode which when activated emits light.

When suitable amount of Voltage is applied , electron-hole combination takes place and energy is released in the form of photons or light. This process is known as electroluminescence. The color of light depends on energy gap.

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