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Basic Electronic Systems: Transistors

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Questions and Answers

What is the basic electronic system used nowadays?

Semiconductor device

What is the commonly used device in electronic systems?

Bipolar Junction Transistor (BJT)

What are the three terminals of a BJT?

Anode, Cathode, Gate

Source, Gate, Drain

Collector, Base, Emitter (correct)

What are the two types of BJTs?

pnp and npn Signup and view all the answers

What does the term 'bipolar' in BJT refer to?

The participation of both holes and electrons in the injection process into the oppositely polarized material Signup and view all the answers

What are the two types of bias for a single pn junction?

Forward bias and reverse bias Signup and view all the answers

How many different bias configurations are possible for a two-pn-junction device?

Four Signup and view all the answers

Study Notes

Basic Electronic System

Modern electronic systems rely on semiconductor devices.
Bipolar Junction Transistors (BJTs) are common and crucial.
BJTs can function as amplifiers and logic switches.
BJTs have three terminals: collector (C), base (B), and emitter (E).

Transistor Types

Two main types of BJTs: pnp and npn.

Transistor Construction

BJTs are three-layer semiconductor devices.
npn transistors have two n-type and one p-type layers.
pnp transistors have two p-type and one n-type layers.
"Bipolar" refers to the involvement of both holes and electrons in the current injection process across the junctions.

PN Junction Biasing

A single pn junction can be either forward-biased or reverse-biased.
A BJT with two pn junctions has four possible biasing conditions.

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Description

This quiz covers the fundamentals of bipolar junction transistors (BJTs), including their functions, types, and construction. Learn about the significance of BJTs in modern electronic systems and understand the concept of pn junction biasing. Test your knowledge on how BJTs operate as amplifiers and logic switches.