Unlike BJTs, FETs operate based on voltage control rather than current control.
True
FETs are less sensitive to temperature changes compared to BJTs.
True
In a P-Channel FET, the majority carriers are holes
Steps in the operation of an N-Channel FET
1️⃣ Positive voltage applied to the gate
2️⃣ Electric field enhances the N-type channel
3️⃣ Electrons flow from source to drain
BJTs use current control, while FETs use voltage control.
True
What control mechanism do Field-Effect Transistors (FETs) use?
Voltage
FETs have high input impedance compared to BJTs.
True
What are the primary components of an n-channel FET?
Gate, source, drain, channel
Match the majority carriers with the type of FET:
N-Channel FET ↔️ Electrons
P-Channel FET ↔️ Holes
Which majority carriers do N-Channel FETs use?
Electrons
MOSFETs use a metal-oxide-semiconductor gate.
True
What type of gate voltage is typically used in MESFETs?
Positive
FETs operate based on current control.
False
Match the control mechanism with the type of transistor:
FET ↔️ Voltage
BJT ↔️ Current
What is the key difference in control mechanism between FETs and BJTs?
Voltage vs. current
FETs are ideal for applications requiring high input impedance.
What advantages do FETs offer in impedance and stability?
High impedance and stability
What is the control mechanism in FETs?
Voltage
Why are FETs well-suited for amplifier and switching applications?
High input impedance, low sensitivity
The channel in an n-channel FET is made of an n-type
What are the majority carriers in a p-channel FET?
Holes
Match the FET type with its majority carriers:
N-channel FET ↔️ Electrons
P-channel FET ↔️ Holes
MOSFETs use a metal-oxide-semiconductor gate, while MESFETs use a metal-semiconductor gate
What is a common application of JFETs?
Small signal amplification
JFETs use a junction between the gate and channel, while MOSFETs have a metal-oxide-semiconductor gate
BJTs use current control, while FETs use voltage control.
True
Match the transistor type with its control mechanism:
FET ↔️ Voltage
BJT ↔️ Current
What are the advantages of FETs over BJTs in terms of current control?
High input impedance
In amplifier circuits, FETs modulate current based on the voltage applied to the gate
Field-Effect Transistors (FETs) are three-terminal semiconductor devices used to control the flow of current between the source and drain terminals by varying the voltage applied to the gate
When a voltage is applied to the gate of an FET, it creates an electric field
Match the control mechanism with the correct type of transistor:
Voltage ↔️ FET
Current ↔️ BJT
Electrons are the majority carriers in an N-Channel FET.
True
The control mechanism in an FET is based on voltage
Steps in the operation of a P-Channel FET
1️⃣ Negative voltage applied to the gate
2️⃣ Electric field enhances the P-type channel
3️⃣ Holes flow from drain to source
The control mechanism of a Bipolar Junction Transistor (BJT) is based on current
FETs are highly sensitive to temperature changes.
False
The channel type in a P-Channel FET is a P-type
Applying a positive voltage to the gate of an N-Channel FET enhances the channel.