1.

The slope of i_p-V_g curve is 2 mA/V and slope of i_p-V_p curve is 0.25 mA/V . If anode resistance is 12KOmega what amplification the triode value would produce across the load resistance ?

Answer»

12
18
36
6

Solution :Here, gm `=2XX10^(-3)A/V ` and
`r_p=1/(0.25xx10^(-3))=4000Omega=4xx10^3Omega`
Now `mu=r_pxxgm = 4 xx10^3 xx2 xx 10^(-3)=8`
and voltage amplification = `(muR_L)/(r_p+R_L)`
`=(8xx10^3xx12)/(4xx10^3+12xx10^3)=6`


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