please write legibly or preferably with an equation editor t

please write legibly, or preferably with an equation editor. thanks in advance.

Use the datasheet for the BS107 small-signal MOSFET to answer the following questions: Use the appropriate plot on page 3 to determine the typical value of k_n and V_t for this MOSFET. Explain your reasoning. Note that the datasheet shows some dependence of k_n on l_D, but you can still specify a typical value - just explain how you do it. What drain current will the circuit below generate when using a typical BS107? In the schematic V_dd = 15V:

Solution

a)

Using the figure 3

Junction temperature=45 ºC

Using the next equation

ID1=100mA

VGS1=0.6V

ID2=250mA

VGS2=1.5V

Vth=1.5 V

For Kn, using the next equation

K=0.123456790123457

b) If vdd=15V

Vds=15V

If gate is 5V

Id=0.6A