Question

The symbol represents:

• A. NPN transistor
• B. PNP transistor
• C. Photo transistor
• D. Field effect transistor

Answer 1

The correct option is A NPN transistor

The direction of the arrow in the symbol tells the type of transistor i.e. whether it is pnp or npn. The arrow specifies the direction of flow of current (holes) in the transistor.

Since the holes flow from p to n side, so the arrow points from p to n side. So, the base is p and emitter is n region. Therefore, it is an NPN transistor.