In the study of transistors as an amplifier, if `alpha=I_(c)//I_(c)` and `beta=I_(c)//I_(b)`, where `I_(c),I_(b)` and `I_(e)` are the collector, base and emitter currents, thenA. `beta=(1-alpha)/(alpha)`B. `beta=(alpha)/(1-alpha)`C. `beta=(alpha)/(1+alpha)`D. `beta=(1+alpha)/(alpha)`

In the study of transistors as an amplifier, if `alpha=I_(c)//I_(c)` a

1.	In the study of transistors as an amplifier, if `alpha=I_(c)//I_(c)` and `beta=I_(c)//I_(b)`, where `I_(c),I_(b)` and `I_(e)` are the collector, base and emitter currents, thenA. `beta=(1-alpha)/(alpha)`B. `beta=(alpha)/(1-alpha)`C. `beta=(alpha)/(1+alpha)`D. `beta=(1+alpha)/(alpha)`
Answer» Correct Answer - B As we know `i_(E)=i_(C)+i_(B)` `implies (i_(e))/(i_(c))=1+(i_(b))/(i_(c)) implies 1/(alpha)=1+1/(beta) implies implies beta=(alpha)/(1-alpha)`.

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In the study of transistors as an amplifier, if `alpha=I_(c)//I_(c)` and `beta=I_(c)//I_(b)`, where `I_(c),I_(b)` and `I_(e)` are the collector, base and emitter currents, thenA. `beta=(1-alpha)/(alpha)`B. `beta=(alpha)/(1-alpha)`C. `beta=(alpha)/(1+alpha)`D. `beta=(1+alpha)/(alpha)`

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