Quiz on Field Effect Transistors (FET)

What is the main characteristic that differentiates FETs from BJTs?

• FETs are voltage controlled devices

• FETs have lower input impedance

• FETs are more sensitive to temperature variations

• FETs are current controlled devices

What does JFET stand for?

• Joint Frequency Effect Transistor

• Junction Field Effect Transistor

• Junction Frequency Effect Transistor

• Joint Field Effect Transistor

In which region does a JFET act like a voltage-controlled resistor?

• Cut-off Region

• Saturation Region

• Linear/Ohmic Region

• Breakdown Region

What is the primary function of the Gate terminal in a JFET?

• To increase the voltage across the source

• To supply current to the drain

• To control the current flowing in the channel

• To connect the source to the drain

What is the main advantage of using a FET amplifier?

• Low input impedance

• Low voltage gain

• High input impedance

• High output impedance

What is the function of the MOSFET's gate insulation?

• To connect the gate to the source

• To enhance the channel conductivity

• To increase the gate current

• To prevent current flow into the gate

What happens to the MOSFET when the gate voltage is less than the threshold voltage?

• It operates in the saturation region

• It acts like a closed switch

• It operates in the cut-off region

• It conducts maximum current

Which type of MOSFET has no structural channel until biasing occurs?

• D-MOSFET

• E-MOSFET

• P-channel MOSFET

• N-channel MOSFET

What is the typical use of a Common Drain (Source Follower) amplifier?

• Voltage amplifier

• Current amplifier

• Buffer

• High voltage gain application

What is the effect of increasing the gate voltage in an enhancement-mode MOSFET?

• It has no effect on the channel

• It increases the channel resistance

• It turns the MOSFET off

• It decreases the channel resistance