The operational amplifier is also known as Op Amp. It is a type of amplifier. After watching this video you’ll be able to learn about the basic definition of the amplifier, op amp. An op-amp has two inputs and it requires two dc power supplies for working. Its gain is very high under normal conditions. Most op amps are used for the feedback. The voltage and current properties are also discussed briefly. In fact, this is an ultimate and very easy to learn video for beginners.