unit-1 cmos logic

What does CMOS stand for in CMOS logic?

• A. Carbon Monoxide Silicon
• B. Complementary Metal Oxide Silicon
• C. Copper Metal Oxide Silicon
• D. Ceramic Metal Oxide Silicon

Which type of MOS transistor is used in CMOS logic?

• A. N-channel MOS transistor
• B. P-channel MOS transistor
• C. Complementary MOS transistor
• D. Metal-oxide-semiconductor field-effect transistor

Which logic gate is formed by connecting a P-channel MOS transistor in series with an N-channel MOS transistor?

• A. AND gate
• B. OR gate
• C. NOT gate
• D. NAND gate

How is the output of a CMOS logic gate determined?

• A. By the logic level of the input signal
• B. By the resistance of the load connected to the output
• C. By the current flowing through the input transistors
• D. By the state of the MOS transistors in the gate

What is the difference between static CMOS logic and dynamic CMOS logic?

• A. Static CMOS logic uses NAND gates, while dynamic CMOS logic uses NOR gates
• B. Static CMOS logic uses a clock signal, while dynamic CMOS logic does not
• C. Static CMOS logic uses transistors in series, while dynamic CMOS logic uses transistors in parallel
• D. Static CMOS logic has lower power consumption, while dynamic CMOS logic has higher speed

What is the advantage of using CMOS logic over other types of logic?

• A. Higher noise immunity
• B. Higher fan-out capability
• C. Lower power consumption
• D. All of the above

Design a CMOS inverter using a P-channel MOS transistor and an N-channel MOS transistor with Vdd = 5V. What is the output voltage when the input voltage is 3V?

• A. 0V
• B. 2V
• C. 3V
• D. 5V

A circuit requires a CMOS gate with high noise immunity and low power consumption. Which type of CMOS logic should be used?

• A. Static CMOS logic
• B. Dynamic CMOS logic
• C. Domino CMOS logic
• D. Pass-transistor CMOS logic

How is the output of a CMOS inverter determined?

• A. By the voltage difference between the two inputs
• B. By the voltage on the input with higher resistance
• C. By the voltage on the input with lower resistance
• D. By the logical combination of the two inputs

What is the voltage level at the output of a CMOS inverter when both inputs are at logic level 1?

• A. 0 V
• B. VDD
• C. VSS
• D. It depends on the input capacitance