Q. 215.0( 3 Votes )

For a CE-transist

Answer :

Given: -


The output ac voltage is 2.0 V.


The collector resistance of 2 KΩ


The base resistance is 1 KΩ


The current amplification factor = 100


Calculations: -


the ac collector current ic = 2.0/2000 = 1.0 mA.


Current amplification factor, β= Ic / Ib


The signal current through the base is given by,



iB = 1 × 10-5 A


The input signal voltage is calculated as,


VBE=Ib × Rb =1× 10-5 × 1000= 10-2V


The input signal current is 0.01 mA or 10 μA.

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