The relation between α and β is given by _________(a) 1/(1-α)=1- β(b) 1/(1+α)=1+ β(c) 1/(1-α)=1+ β(d) 1/(1+α)=1- βI have been asked this question by my college professor while I was bunking the class.Question is from The Common Collector Configuration in chapter Transistor Characteristics of Electronic Devices & Circuits

The relation between α and β is given by _________(a) 1/(1-α)=1- β

1.	The relation between α and β is given by _________(a) 1/(1-α)=1- β(b) 1/(1+α)=1+ β(c) 1/(1-α)=1+ β(d) 1/(1+α)=1- βI have been asked this question by my college professor while I was bunking the class.Question is from The Common Collector Configuration in chapter Transistor Characteristics of Electronic Devices & Circuits
Answer» RIGHT option is (c) 1/(1-α)=1+ β For explanation I WOULD say: The current amplification factor (β) is given by IC//IB. When no signal is applied, then the ratio of collector current to the base current is called current amplification factor of a TRANSISTOR. β is an AC base amplification factor. α is called as current amplification factor. The relation of IC and IB change as IC= βIB+ (1+ β) ICBO.

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