If the value of the common base current gain (α) is 0.98, then the value of the common collector current gain (γ) is ________.

Concept

The relationship between the common base current gain (α) and the common collector current gain (γ) in a bipolar junction transistor (BJT) can be expressed as:

\(γ={1\over 1-α}\)

The relationship between the common base current gain (α) and the common emitter current gain (β) is:

\(α={β\over 1+β}\)

Calculation

Given, α = 0.98

\(γ={1\over 1-0.98}=50\)

Additional Information
1.) Common emitter current gain (β)

\(\beta={I_C\over I_B}\)

2.) Common base current gain (α)

\(\alpha={I_C\over I_E}\)

3.) Common collector current gain (γ)

\(\beta={I_E\over I_B}\)

where, I_C = Collector current

I_B = Base Current

I_E = Emitter current