Question
Thu February 21, 2013 By:
 

what is difference between photo diode and LED's

Expert Reply
Fri February 22, 2013
Photo diode is the pn jn diode which conducts electricity/produces electricity through photo excitation(when light is incident on the junction).
LED is the diode which emits light when it conducts electricity ie converts electric energy to light energy.
Photo diode is revrse biased.
LED works in forward bias.
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