EE 101 Introduction To Electrical Fundamentals, Fall 2007
Name:__________________________
LAB #0 -- Protoboard Connections
After completing this experiment you should:
(1) Be familiar with the manner in which your protoboard is connected,
(2) Be comfortable in using the Digital Multimeter (DMM) to measure resistance.
Consider the following photograph shown in Figure 1. The photograph displays a portion
of a typical protoboard. Several of the pins have been labeled. Using the DMM and
short pieces of wire, determine the resistances between the requested points to complete
Table I found on the back of this sheet. It is crucial that you understand how your
protoboard is connected as you will assemble a variety of electrical circuits on the board.
Therefore, as you take the measurements look for relevant trends.
Make certain to ask your instructor for help as needed.
1 2
3
4
5
7
6
8
9
10
Figure 1: Photograph of a portion of a typical protoboard. You are to measure the
resistance between several of the points shown in the figure. Your instructor will
demonstrate one measurement for you.
EE 101 Introduction To Electrical Fundamentals, Fall 2007
Points
of interest
TABLE I
Resistance between points
Are the two points shorted
(include units)***
together or are they electrically
isolated?
2
3
3
4
5
5
7
7
8
10
9
10
*** If a resistance measurement is such that the DMM is off scale even on the highest
resistance setting, simply write “> 20 MΩ”.
You are now to connect a resistor (available from your instructor) as indicated in Table II
and take the requested resistance measurement. Make certain to answer the question
given below the table.
TABLE II
Resistor:
Resistance (Ohms)
Without board
1 and 2
1 and 7
Provide a brief explanation of your measured results recorded in TABLE II.