Be sure to print a copy of experiment #5 and bring it with you to your lab session. There will not be any copies available in the lab.
This week we will do experiment 5 AS IS. Your data will be the graphical images on the display of the scope. So, BRING GRAPH PAPER! cm X cm is best since that is the actual scale of the scope display. You will be sketching the current/voltage characteristics of several elements and simple networks. Since many of these i/v curves are non-linear the term NL is used as the test element (or network) general name. When NL = a resistor then of course the i/v curves follow the linear relation of Ohm's law.
So,
i = (1/R)v The equation of a line!
So you should see a line on the display that has a slope = 1/R and a i-intercept at (0,0)
When NL is a series combination of a battery Vb and a resistor R then it is easy to show that:
i = (1/R)v - (1/R)Vb A line again!
The slope is still 1/R but the i-intercept is -(1/R)Vb
Show that this is true by doing the circuit analysis. No other circuit analysis is required.
Read and know the setup of this experiment and
Have fun!