A N-MOSFET in the saturation region has a current of 400 uA at VGS = 4 V and 150 uA at VGS = 3 V. (a) ( 3 points) Determine the threshold voltage, VTN from the provided data. (a) Their are two data points given in the problem, but their are also two unknowns. Write the ratio of drain currents of each data point to remove one of the unknowns, Id1/Id2 . (b) Solve for VTN using the solution from the last part. Hint: You will obtain two solutions, but only one will make sense with the data given. (c) (3 points) Determine the Kn coefficient for the MOSFET. Hint: This is the other unknown removed by part a).