Power Consumption and CMOS Technology Quiz

What is the formula for total power consumption in a circuit?

• P_total = P_static * P_dynamic

• P_total = P_dynamic + P_static

• P_total = P_dynamic - P_static

• P_total = P_dynamic / P_static

Which component primarily causes short-circuit current in CMOS devices?

• Both pMOS and nMOS

• nMOS

• Load capacitance

• pMOS

What is the activity factor (α) used to measure in power consumption?

• Leakage current

• Static power

• Dynamic power

• Switching activity

Which type of leakage is primarily caused by reverse-biased p-n junctions?

• Gate leakage

• Junction leakage

• Contention current

• Subthreshold leakage

What is the effect of body bias on threshold voltage?

• It doubles the threshold voltage

• It has no effect on threshold voltage

• It decreases the threshold voltage

• It increases the threshold voltage

In a CMOS inverter, when the input is 0, which transistor is ON?

• Both nMOS and pMOS

• Neither nMOS nor pMOS

• pMOS

• nMOS

What is the primary advantage of scaling in VLSI technology?

• Increased power consumption

• Increased complexity

• Increased chip density

• Increased heat generation

What does the term 'velocity saturation' refer to in transistor behavior?

• Current flow stops

• Transistor turns off

• Transistor turns on

• Carrier velocity ceases to increase linearly

Which of the following is a characteristic of nMOS transistors compared to pMOS transistors?

• Higher power consumption

• Higher noise immunity

• Lower noise immunity

• Slower switching speed

What is Moore's Law related to?

• Chip fabrication costs

• Transistor density in ICs

• Leakage currents

• Power consumption