What is LED? Draw the V-I characteristics of an LED?
Important Questions on Semiconductor Devices
What is the advantage of an LED bulb over filament bulb?
Which of the following statement is not correct in the case of light emitting diodes?
A. It is a heavily doped p-n junction.
B. It emits light only when it is forward biased.
C. It emits light only when it is reverse biased.
D. The energy of the light emitted is equal to or slightly less than the energy gap of the semiconductor used.
Choose the correct answer from the options given below :
LED emits light when connected in _____.
(Fill in the blank using 'forward bias' or 'reverse bias')
What do you understand by light-emitting diode (LED)? Explain photodiode and distinguish LED and photodiode. Draw their biasing also.
What is LED? Explain how radiations are given out by LED?
Statement-1 : Light emiting diode (LED) emits spontaneous radiation.
Statement-2 : LED is forward-biased p-n junction.
