What is the main advantage of using FETs over BJTs?
Practice Questions
Q1
What is the main advantage of using FETs over BJTs?
Higher current gain
Lower input impedance
Higher input impedance
Lower power consumption
Questions & Step-by-Step Solutions
What is the main advantage of using FETs over BJTs?
Step 1: Understand what FETs and BJTs are. FET stands for Field Effect Transistor, and BJT stands for Bipolar Junction Transistor. Both are types of transistors used in electronics.
Step 2: Learn about input impedance. Input impedance is a measure of how much a device resists the flow of electric current at its input.
Step 3: Compare the input impedance of FETs and BJTs. FETs have a higher input impedance than BJTs.
Step 4: Recognize the significance of high input impedance. A higher input impedance means that FETs can be used in applications where it is important not to draw too much current from the previous stage of a circuit.
Step 5: Conclude that the main advantage of using FETs over BJTs is their higher input impedance, making them better for high-impedance applications.
