Relation between α , β in BJT | Explanation and derivation of expression | Electronics

[@vishnoo_prasad_m]

Very clear explanation sir.
Thank you sir.. ❤️

[@vincenzocasinohieu577]

What is the correct relationship between α and β trong BJT?
Select one:
a. β = (1-α)/ α
b. β= α/ (1-α)
c. β = α/ (1+α)
d. β = (1-α)/ (1+α)