Special Purpose P-N Junction Diode
Special Purpose P-N Junction Diode: Overview
This topic covers concepts, such as, Photo Diode, Light-Emitting Diode, Advantages of Solar Cell & Disadvantages of Solar Cell etc.
Important Questions on Special Purpose P-N Junction Diode
What are the two types of confinement used in LEDs?


Which material is not suitable for LED?

What are the material used in LED lights?

Why compound semiconductors are used in LED?


What is direct and indirect bandgap?

What is direct and indirect recombination?

Can a LED be connected directly to a 9V battery?

What will happen if an LED is connected to AC main supply?

What happens when an LED is directly connected to a power supply?


Very large geographical area is needed in order to deploy solar _____ or cells.

In solar cell,During cloudy weather, _____ power is being generated.

Solar cell can not be used in absence of the light from any source.

Solar cell does not require ____ or water to produce electricity.

Solar cell does not produce any ____ as it does not have any moving parts.


Solar cell are environmentally friendly energy.

Shockley diode is a four layer (P-N-P-N) device. It conducts when it is forward biased and stops conducting when it is _____ biased.
