Junction Field Effect Transistor Quiz

What does the term "Junction Field Effect Transistor" (JFET) refer to?

• A type of bipolar junction transistor

• A type of field-effect transistor that uses a junction to control current

• A type of resistor used in circuits

• A type of capacitor used in electronic devices

In a JFET, what is the primary function of the gate terminal?

• To supply power to the transistor

• To control the flow of current between the source and drain

• To connect the transistor to the ground

• To amplify the input signal

If the gate-source voltage (Vgs) of a JFET is increased, what effect does it have on the drain current (Id)?

• The drain current decreases

• The drain current remains constant

• The drain current increases until a certain point

• The drain current becomes zero

Which of the following statements is true regarding the operation of a JFET?

• It operates in the active region when Vgs is greater than the threshold voltage.

• It is always in the cutoff region when Vgs is zero.

• It can be used as a switch when Vgs is less than the threshold voltage.

• It allows current to flow freely between the source and drain when Vgs is negative.

What is the main advantage of using a JFET over a bipolar junction transistor (BJT)?

• JFETs have higher current gain than BJTs.

• JFETs are less sensitive to temperature changes.

• JFETs can operate at higher frequencies than BJTs.

• JFETs require less input power to operate.