Relation between current amplification factor α and current amplification factor β

Current amplification factor α

• It is defined as the ratio of the output current ( collector current ) and input current (  emitter current ).

Dielectric Loss in the Cable

The following losses take place in the Cable.

Heating of cable

• The heating of cable depends upon dielectric loss, copper loss and inter sheath loss.

Compare Common Collector ( CC ) , Common Base ( CB ) and Common Emitter ( CE ) Configuration

Comparison of Transistor Configurations

Parameter	Common Base	Common Emitter	Common Collector
Current Amplification Factor	α = ∆IC / ∆IE	β = ∆IC / ∆IB	γ = ∆IE / ∆IB

Common Collector ( CC ) Transistor Configuration & Its Application

• As the collector terminal is common to both input and output of the transistor, it is called as Common Collector Configuration. 
• The input voltage V_CE is applied between base and collector terminal

Common Emitter ( CE ) Transistor Configuration & its Input - Output Characteristics

Common Emitter Configuration

• As the emitter terminal is common to both input and output of the transistor, it is called as Common Emitter Configuration. 

Common Base ( CB ) Transistor Configuration & Its Input - Output Characteristics

Common Base Configuration

• As the base terminal is common to both input and output of the transistor, it is called as Common Base Configuration. 

What is Darlington Transistor?

Darlington Transistor ( Darlington Amplifier )

• When two transistors are connected in the series in the Emitter follower configuration, it is called as Darlington Transistor.