Symbol of an op-amp is triangle only.why?

[iwasgod]

help me here...symbol of an op-amp is triangular in shape...i need reason for this...why it is so...or where i can find regarding this..
similar que for transistor also...

 

[mgb_phys]

The symbol is totally arbitrary, somebody thought it up and other people copied it.
Rememebr how you draw it in a schematic has no relation to how the real part actually looks.

A triangle makes sense because there are 3 important connections to an opamp (2inputs and 1output) and there is a sense of direction, the inputs go toward the output so a shape like an arrow fits.

 

[Mene]

The triangle symbol for an op-amp is a standard convention in electrical engineering and has been used for many years. It represents the internal circuitry and function of an op-amp, which is to amplify the difference between two input signals. The triangle shape is also a convenient and simple representation for this function.

As for transistors, the symbol is typically a combination of two triangles or a single triangle with a circle or arrow, depending on the type of transistor (e.g. NPN or PNP). This symbol also represents the internal structure and operation of a transistor, which is to amplify or switch electrical signals.

You can find more information about the symbols and functions of op-amps and transistors in any introductory electronics or circuit analysis textbook. Additionally, there are many online resources available that explain the symbols and operation of these components in detail.