Multiple choice technology

Which colour LED drop maximum voltage in visiable region?

  1. All the below

  2. Red

  3. Yellow

  4. Orange

  5. Green
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

LED photon energy is proportional to the bandgap voltage. In the visible spectrum, green, blue, and ultraviolet LEDs have higher bandgap energies and thus drop a higher forward voltage compared to lower-energy red, orange, or yellow LEDs. Among the given choices, Green drops the maximum voltage.

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