A common-source amplifiers has 8m = 2m A/V ro = 50k ohm ,X = 0,2, and Rz = 50k ohm. Find the value of resistance of R, that, when connected in the source, reduced signal Ves by a factor 3 (i.e. with R, connected vgs/v; = 1/3. What is the corresponding value of voltage gain obtained