assumptions are just a way for covering the mistakes when they didn't set the question properly and they can't solve it themselves! this is getting so damn irritating....i am happy to be given freedom. why, you can give us freedom to make "assumptions" but you can't give us the freedom to choose whichever analysis we want to use when the alternative analysis is just as logical and produces the same result? aren't you contradicting yourself?

"oh, no..you should not analyse the circuit using miller's theorem because the example in the lecture notes is not using it. you should follow the lecture notes because we will cut your marks if you don't, though you might get the same answer. we want all the solutions to be syncronised."

so, do you think that our minds are so 'synchronised' that we'll make the same assumption? these people are really crappy.

"There are two degrees of freedom for us to choose reasonable values for VG and RS.
Lets say, we choose VG = 3V, then RS = (VG –VGS)/ ID = (3 + 1.47)/ 4mA = 1.118k"

yeah, now you know that the question cannot be solved without knowing the value of VG or VDS. neither value is given and you can't solve the problem you've created. so you ask us to make assumption? what if my assumption is not VG = 3V? and why is VG = 3V? i can't read your mind, you know. you are not significant enough to me for that to happen.

.............................................. some things just suck..