Using an average value of 2.9 mA for the IDSS of the 2N3797 MOSFET of Fig. 6.31, determine...

Using an average value of 2.9 mA for the I_DSS of the 2N3797 MOSFET of Fig. 6.31, determine the level of V_GS that will result in a maximum drain current of 20 mA if V_P = −5 V.

FIG. 6.31 2N3797 Motorola n-channel depletion-type MOSFET.