EE222.

Remarks on Lab note book for LAB#3.


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While very good plots are not required to be drawn in the lab notebook, it 
is necessary to draw straight lines where straight-line plots are involved. 
Otherwise, when two lines are closely-spaced (as was expected if you had 
drawn the Io-Vo lines from parts 1 and 2 on the same graph), useful insights 
will not be obtained.


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Io-Vo lines from parts 1 and 2 must have been drawn on the same graph. 
Otherwise, such a statement as "the Io-Vo lines from parts 1 and 2 are close 
to each other (or resemble each other)" raise questions. 

If the plots are drawn on seperate graphs, we will have to look into the 
tables to compare the values. This defeats the purpose of drawing graphs, 
which is to present the data in such a manner that the reader understands 
the data by spending a fraction of the time that he would spend if he were 
to look into the corresponding tables.

We could see the following if the Io-Vo lines from parts 1 and 2 had been 
drawn on the same graph:

(a) how close they are to each other, 

(b) which one of them is higher (this may tell something about the internal 
resistances or any other resistances that we did not account for), 

(c) are the lines closer to each other at small values of current or at 
large values of current?