# 20190326191239hw_2_answers.docx - HW#2 MULTIPLE CHOICE 1...

• 5

This preview shows page 1 - 2 out of 5 pages.

HW #2 MULTIPLE CHOICE 1. The current output (drain current, i D , from a field-effect transistor is controlled by two voltage differences: gate-source, V GS , and drain-source, V DS . Which of the following statements is TRUE ? a. The transconductance is the integral of i D over V DS . b. The transconductance is the partial derivative of i D with respect to V DS (drain-source voltage). c. The transconductance is the partial derivative of i D with respect to V GS (gate-source voltage). d. The transconductance is the partial derivative of i D with respect to the threshold voltage, V th . 2. Operational amplifiers amplify the voltage difference between two input terminals (inverting, -, and non-inverting, +). Which of the following statements is NOT an assumption about ideal behavior of op-amps? 3. Which of the following is FALSE about an inverting amplifier, with no feedback, powered by a voltage between +8 and -8 V, with open-loop gain of 5000, and with a corner frequency of 10 kHz? Assume non-ideal (real-world) behavior and a grounded non-inverting terminal. a. When the voltage input to the inverting (-) terminal is an alternating current with peak-to-peak amplitude of 4 mV and frequency of 1 Hz, the output voltage will be saturated. b. When the voltage input to the inverting (-) terminal is an alternating current with peak-to-peak amplitude of 1 mV and frequency of 1 Hz, the output voltage will 180 degrees phase-shifted from the input. c. When the voltage input to the inverting (-) terminal is an alternating current with peak-to-peak amplitude of 1 mV and frequency of 1 Hz, the output voltage peak-to- peak amplitude will be 5 V. d. When the voltage input to the inverting (-) terminal is an alternating current with peak-to-peak amplitude of 1 mV and frequency of 20 Hz, the output voltage will be saturated.

Subscribe to view the full document.

• Fall '16
• dfds sff

{[ snackBarMessage ]}

###### "Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern