GMDSS: Element 3

1. A An FET has high input impedance; a bipolar transistor has low input impedance.
2. B One cannot compare input impedance without first knowing the supply voltage.
3. C An FET has low input impedance; a bipolar transistor has high input impedance.
4. D The input impedance of FETs and bipolar transistors is the same.

Tip: press A-D to answer