1. Consider an n-channel MOSFET with 15um gate width and 2um gate length. The oxide capacitance is 61a594eb18261.jpg. If the MOSFET is operated in a non-saturation region with a drain-to-source voltage 61a595bd9e072.jpg = 0.1V. The drain current ID = 35 μA at gate-to-source voltage61a595f0ba614.jpg = 2.5V,  ID = 75 μA. Determine the (a) electron mobility (b) threshold voltage (20%)