Download Connected - Introduction to Microelectronic Circuits - Exam and more Exams Microelectronic Circuits in PDF only on Docsity! EECS 40, Spring 2005 Prof. Chang-Hasnain Midterm #1 March 3, 2005 Total Time Allotted: 80 minutes 1. This is a closed book exam. However, you are allowed to bring one page (8.5” x 11”), double-sided notes 2. No electronic devices, i.e. calculators, cell phones, computers, etc. 3. Numerical answers within a factor of 1.5 will not get points deducted, provided the steps are all correct and the errors are due to the lack of a calculator. (e.g. if the correct answer is 1, the acceptable range will be 0.67~1.5). 4. SHOW all the steps on the exam. Answers without steps will be given only a small percentage of credits. Partial credits will be given if you have proper steps but no final answers. 5. Write your answers in the spaces (lines, boxes or plots) provided. 6. Remember to put down units. Points will be taken off for answers without units. 7. NOTE: nH=10 -9 H; pF=10 -12 F; GHz=10 9 Hz; MHz=10 6 Hz Last (Family) Name:_____________________________________________________ First Name: ____________________________________________________________ Student ID: ____________________________________________________________ Signature: _____________________________________________________________ Score: Problem 1 (20 pts) Problem 2 (20 pts): Problem 3 (30 pts): Problem 4 (30 pts): Total 100 pts 1: A voltage source with voltage V is connected to N identical resistors with resistance R. (a) All of the resistors are connected in parallel, as in Figure 1a. What is the equivalent resistance R eq ? What is the total power consumed in the resistors? (b) All the resistors are all connected in series, as in Figure 1b. What is the equivalent resistance R eq ? What is the total power consumed in the resistors? 2. Equivalent circuit (a) What is equivalent resistance R eq for points A-B? (b) What is the open circuit voltage across points A-B? (c) What is the short circuit current through points A-B?
