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LED is a p-n junction diode which is...

LED is a p-n junction diode which is

A

forward biased

B

either forward biased or reverse biased

C

reverse biased

D

neither forward biased nor reverse biased

Text Solution

Verified by Experts

The correct Answer is:
A
When a junction diode is forward biased, enregy is released at the junction due to recombination of electrons and holes. In the junction diode made of gallium arsenide or indium phosphide, the energy is released in visible region. Such a junction diode is called a light emitting diode or LED.
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