Question

0 In LED when an electron combines
with a __________ during forward bias
conduction, a photon
of visible light is emitted.

Answer 1

Answer:

diod

Explanation:

0 In LED when an electron combines

with a diod during forward bias

conduction, a photon

of visible light is emitted.

Answer 2

Answer:

high voltage

Explanation:

iAn LED is a light emitting diode. The LED emits light when it is forward biased and it emits no light when it is reverse biased. The intensity of light is proportional to the square of the current flowing through the device.

When a junction diode is forward biased, energy 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. Thus, light is emitted form the diode and hence the name 'light emitting diode'.