A gate is defined as a digital circuit which follows some logical relationship between the input and output voltages. It is a digital circuit which either allows a signal to pass through as stop, it is called a gate.
The Logic Gates are building blocks at digital electronics. They are used in digital electronics to change on voltage level (input voltage) into another (output voltage) according to some logical statement relating them.
Find more information about Logic Gates, OR Gate, AND Gate, NOT Gate etc. Click here.
Laser is a process by which we can obtain a beam of light which is highly coherent, highly monochromatic and perfectly parallel.
A laser beam can be sent to a for all
place and return back without any practical loss of intensity and it can be used for many
purposes.
The first successful laser was constructed by T.H. Maiman in 1960.
He used a small Ruby Rode known as Ruby Laser. May others have
also been constructed e.g. Helium-Neon Laser, Carbon dioxide laser
etc.A.C. Generator is a device which is used to convert the mechanical energy in to electrical energy is called electric generator.
Principle of A.C. Generator
It is based on the principle of electro magnetic induction. When a coil rotated about on axis perpendicular to the direction of uniform magnetic field, an induced e.m.f. is produced across it.
