Figure P11.54 shows a matched JFET differential pair biased with a current source IQ. (a)...

Figure P11.54 shows a matched JFET differential pair biased with a current source IQ. (a) Starting with

show that

and

(b) Show that the IQ bias current is switched entirely to one transistor or the other when

(c) Show that the maximum forward transconductance is given by