ATT (ET) - WEEK 6 EXAM WITH
QUESTIONS AND 100% CORRECT
ANSWERS | VERIFIED BY EXPERT |
NEWLY UPDATED 2025.
Q: What is the most common fault in a FET amplifier circuit?
ANSWER ✔✔ A failed FET
Q: What does transconductance measure?
ANSWER ✔✔ How much control the input voltage has on the output current
Q: What is the unit of transconductance (Gm)?
ANSWER ✔✔ Mhos
Q: What is the formula for calculating voltage gain (Av) in a FET circuit?
ANSWER ✔✔ Gm × Rd
Q: What does an enhancement mode MOSFET normally act like?
ANSWER ✔✔ Open switch
Q: What does a depletion mode MOSFET normally act like?
ANSWER ✔✔ Closed switch
Q: What is the main advantage of a MOSFET device?
ANSWER ✔✔ Low power consumption
, Q: What does the feedback circuit allow to pass to the amplifier input?
ANSWER ✔✔ 1 frequency
Q: What determines the frequency allowed by the feedback circuit?
ANSWER ✔✔ The value of the components in the feedback circuit
Q: What is the correct order to check faults in a circuit?
ANSWER ✔✔
1. Output
2. Vcc
3. Amplifier
4. Output
Q: What is the piezoelectric effect?
ANSWER ✔✔ Crystals have a natural frequency at which they vibrate, determining the
oscillator frequency
Q: What is a crystal oscillator?
ANSWER ✔✔ A quartz crystal mounted between two metal plates
Q: What determines the frequency of the output in a sawtooth generator?
ANSWER ✔✔ The frequency of the input
Q: What does a sawtooth generator do?
ANSWER ✔✔ Changes square waves to sawtooth waves
Q: Is it true that CMOS gate operation is similar to a capacitor and doesn’t require
resistors to dissipate power?
ANSWER ✔✔ True
QUESTIONS AND 100% CORRECT
ANSWERS | VERIFIED BY EXPERT |
NEWLY UPDATED 2025.
Q: What is the most common fault in a FET amplifier circuit?
ANSWER ✔✔ A failed FET
Q: What does transconductance measure?
ANSWER ✔✔ How much control the input voltage has on the output current
Q: What is the unit of transconductance (Gm)?
ANSWER ✔✔ Mhos
Q: What is the formula for calculating voltage gain (Av) in a FET circuit?
ANSWER ✔✔ Gm × Rd
Q: What does an enhancement mode MOSFET normally act like?
ANSWER ✔✔ Open switch
Q: What does a depletion mode MOSFET normally act like?
ANSWER ✔✔ Closed switch
Q: What is the main advantage of a MOSFET device?
ANSWER ✔✔ Low power consumption
, Q: What does the feedback circuit allow to pass to the amplifier input?
ANSWER ✔✔ 1 frequency
Q: What determines the frequency allowed by the feedback circuit?
ANSWER ✔✔ The value of the components in the feedback circuit
Q: What is the correct order to check faults in a circuit?
ANSWER ✔✔
1. Output
2. Vcc
3. Amplifier
4. Output
Q: What is the piezoelectric effect?
ANSWER ✔✔ Crystals have a natural frequency at which they vibrate, determining the
oscillator frequency
Q: What is a crystal oscillator?
ANSWER ✔✔ A quartz crystal mounted between two metal plates
Q: What determines the frequency of the output in a sawtooth generator?
ANSWER ✔✔ The frequency of the input
Q: What does a sawtooth generator do?
ANSWER ✔✔ Changes square waves to sawtooth waves
Q: Is it true that CMOS gate operation is similar to a capacitor and doesn’t require
resistors to dissipate power?
ANSWER ✔✔ True
