Question

When LED is forward biased, then

• A. electrons from the n-type material cross the -n junction and recombine with holes in the p- type material
• B. electrons and holes neutralise each other
• C. at junction electrons and holes remains at rest
• D. None of the above

Answer 1

Answer: (A)

When light emitting diode (LED) is forward biased the electrons from the n-type material cross the $ p-n $ junction and recombine with holes in the p-type material.