unit-1 mos transistors

Which type of transistor uses majority carriers for its operation?

• A) MOS transistor
• B) BJT
• C) JFET
• D) None of the above

What is the most common material used for making the gate electrode of a MOS transistor?

• A) Gold
• B) Copper
• C) Silicon
• D) Aluminum

What is the name of the region between the source and drain terminals of a MOS transistor?

• A) Base
• B) Collector
• C) Emitter
• D) Channel

What is the name of the voltage required to turn on a MOS transistor?

• A) Drain voltage
• B) Gate voltage
• C) Source voltage
• D) None of the above

What is the role of the gate electrode in a MOS transistor?

• A) To provide a path for majority carriers
• B) To control the flow of majority carriers between the source and drain
• C) To collect minority carriers
• D) None of the above

What happens when the gate voltage of a MOS transistor is below the threshold voltage?

• A) The transistor is turned off
• B) The transistor is turned on
• C) The transistor is in saturation mode
• D) None of the above

What is the difference between NMOS and PMOS transistors?

• A) NMOS has an n-type channel, PMOS has a p-type channel
• B) NMOS has a p-type channel, PMOS has an n-type channel
• C) Both have an n-type channel
• D) Both have a p-type channel

What is the effect of increasing the gate-source voltage of a MOS transistor?

• A) Increases the width of the channel
• B) Decreases the width of the channel
• C) No effect on the channel width
• D) None of the above

What is the name of the process used to create a MOS transistor?

• A) Chemical vapor deposition
• B) Ion implantation
• C) Photolithography
• D) All of the above

In which operating region does a MOS transistor act like a switch?

• A. Saturation
• B. Linear
• C. Cut-off
• D. Breakdown