Physics

What is Transistor? Answer :- Transistor is a semiconductor device that can both conduct and insulate. A transistor can act as a switch and an amplifier. It converts audio waves into electronic waves and resistor. Controlling electronic current. Types of Transistor :- There are two types of Transistor – (1) N-P-N transistor. (2) P-N-P transistor. […]

What is solar cell and How It Works? Answer :- A solar cell is basically a p-n junction which generates electrical energy or EMF (electromotive force) when solar radiation falls on the p-n junction. Thus p-side becomes positive and n-side becomes negative giving rise to photovoltage.

Light Emitting Diode :- It is a heavily doped p-n junction which under forward bias emits spontaneous radiation. The diode is encapsulated with a transparent cover so that emitted light can come out. LEDs are biased such that the light emitting efficiency is maximum. The reverse breakdown voltages of LEDs are very low, typically around

p-n Junction Diode :- A p-n junction is a boundary or interface between two types of semiconductor materials, p- type and n- type inside a single crystal of semiconductor. It is the basic building block of semiconductor device like p-n junction diode. p-n Junction Diode under forward bias :- When an external voltage V is

Semiconductors :- Semiconductors are those material which has the conduction properties in between conductor and insulator. It means semiconductor do not allow the free electron to flow as conductor. Examples :- Silicon (Si), Boron (B), Carbon (C), Germanium (Ge) etc. The reason for such type of conductor is the small gap between the valence band