Prof. Rich Kozick
ELEC 101, Spring 1998

## Homework 4

Date Assigned: Monday, February 2, 1998
Date Due: Friday, February 6, 1998

1. The Lab 3 assignment is handed out today. Note that some pre-lab questions are included in the assignment. You should answer the pre-lab questions in your lab notebook before coming to lab on Thursday. I will look at your answers and grade them at the beginning of lab.

2. Design a voltage divider that will produce a voltage division ratio of 0.5 (that is, the output voltage is half the input voltage). The voltage divider should not draw more than 10 mA when the input is a 10 V source (so the output voltage is 5 V). Explain your reasoning.

3. Please solve problem 1.30 in the text by combining series/parallel resistors and using voltage dividers.

4. Please find the current i, the voltage v2, and the voltage across the 3000 ohm resistor in the circuit below. Be sure to label the polarity of the voltage across the 3000 ohm resistor in your answer.

[CIRCUIT DIAGRAM IS NOT AVAILABLE IN HTML DOCUMENT.]

5. Please do the problem on the back of this sheet, which is very similar to the temperature sensor application discussed in class and Lab 3.

[PROBLEM IS NOT AVAILABLE IN HTML DOCUMENT -- SEE PAPER COPY.]
Thank you.