Week 3 - L3.5 Straight line fit

[Alagu Sankar]

I agree with the Professor on all content put forward towards straight line fit. There's a slight technical hiccup here which the Engineer in me refuses to let go. The Video explicitly mentioned a hypothesis from Technician, "Lab has only two resistors: 1 ohm and 2 ohm"

                                            V = I * R  -->  I = V / R

Assuming Voltage to be input and Current to be output :  (  V --> x , I -->  y )

For 1 ohm,  -->  I = V  -->  y = x

For 2 ohm,  -->  I = V/2  -->  y = x/2  -->  Video uses the equation y = 2 * x instead

I totally understand the context here to make us understand Straight line fit better. But the initial hypothesis of only 1 ohm and 2 ohm being available doesn't fit here. 

y = 2 * x  -->  Represents 0.5 ohm resistance line and not 2 ohm

[Anand Iyer]

If you watch the video again, you'll notice y is voltage, and x is current.  You've assumed x is voltage, and y is current.

See the attached screen-grab from the video

[Alagu Sankar]

But even in that case, the hypothesis "Only 1 ohm and 2ohm resistances are present" doesn't hold true