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In common emitter transistor as shown in...

In common emitter transistor as shown in Fig., the `V_(BB)` supply can be varied from 0 V to 5.0V. The Si. Transistor has `beta_(ac)=250` and `R_(B)=100kOmega, R_(c)=1k Omega,V_(C C)=5.0V`. Assume that when the transistor is saturated, `V_(CE)=0V` and `V_(BE)=0.8V`. Calculate the minimum base current, for which the transistor will reach saturation. Hance, determine `V_(i)` when the transistor is 'switched on' find ranges of `V_(i)` for which the transistor is switched off and switched on.

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In Fig (a) , the V_(BB) supply can be varied from 0 V to 5.0 V . The Si transistor has beta_(dc) = 250 and R_(B) = 100 kOmega , R_(C) = 1 k Omega , V_(C C) = 5.0 V . Assume that when the transistor is saturated , V_(CE) = 0V and V_(B E) = 0.8 V . Calculate (a) the minimum base current , for which the transistor will reach saturation .

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