A CG amplifier using an NMOS transistor for which gm = 2 mA/V has a 5-k drain resistance RD and a 5-k load resistance RL. The amplifier is driven by a voltage source having a 750- resistance. What is the input resistance of the amplifier? What is the overall voltage gain Gv ? By what factor must the bias current ID of the MOSFET be changed so that Rin matches Rsig?