In let VCC 5 6 V, R1 5 10 kV, and R 5 1.0 kV. Moreover, let the BJTs be matched devices with Is 5 2 fA, VA 5 `, and negligible base currents. (a) Assuming a small enough voltage drop across the load...

In let VCC 5 6 V, R1 5 10 kV, and R 5 1.0 kV. Moreover, let the BJTs be matched devices with Is 5 2 fA, VA 5 `, and negligible base currents. (a) Assuming a small enough voltage drop across the load to ensure that Q2 is always in the FA region, fi nd VBE1, in mV. (b) Using the relations VBE2 5 VT ln (IC2yIs ) and IC2 5 (VBE1 2 VBE2)yR, iterate until you fi nd the value of IC2. (c) What value must VCC be lowered to if we want IC1 to drop to 50% of its initial value? What is the resulting value of IC2? Does IC2 also drop to 50% of its initial value? Explain!