00:03
All right, so it looks like you have a question about oms law and graphing oms law and seeing what we can come up with for the resistance.
00:11
So first, we need to come up with or understand what oms law is, is this equation.
00:19
The voltage is equal to i or the current flow times r, the total resistance in the circuit.
00:27
So i assume that you did some work on a lab maybe, or these are just numbers that were given to you for a problem to do.
00:39
So we have to graph this.
00:42
So let's look here.
00:43
How can we go about graphing this? using holmes law, we're going to have an x and a y axis.
00:53
And oftentimes the question is, well, which one should i put on the x and which one should i put on the y? well, the equation kind of gives that away.
01:02
So in algebra class, you most likely learned this a while back.
01:07
Y equals mx plus b, that linear slope intercept form for linear functions, right? and the slope of that line is the m, and then the y -axis is whatever value we have for y, and then the x -axis is the x.
01:29
Well, that's the same pattern that we have in reality.
01:32
Oftentimes in math class, we don't have a context of why this is important.
01:37
But here's an example of what we can use y equals nx plus b to actually accomplish.
01:44
So our y value is going to be voltage.
01:46
I'm going to put voltage on the y axis.
01:51
And then my x axis is going to be current.
01:55
So that's going to be the current flow.
01:58
I.
01:58
I might use i for this because that's the symbol that we use in the equation.
02:04
This is in amps and this is in volts.
02:19
And so those are you going to be your y and x axis here.
02:23
The reason that they need to be is because the r value is actually going to be the m, the slope.
02:30
We want the r, which is being asked for, determine the value of the resistor, to be the slope of your line.
02:36
So you're going to have to do this on graph paper.
02:40
So i can kind of set this up.
02:43
I might need to get it and spend a whole bunch of time putting down a scale and all that.
02:50
But i will give you some hints on what you should put as your scale.
02:54
Our highest value from voltage comes out to 2 .6.
03:00
So i would say that the very top of my scale needs to be three.
03:05
So that would be splitting this up into one, two, and three, and then two and a half, one and a half and a half.
03:24
So that's how i would do the bolt -inch y -axis.
03:28
I would split it up with it as spread out as i can with three being the top of my y -axis range.
03:38
Now over here, i've got some negative numbers.
03:42
And some positives.
03:47
So i can make, let's see, the highest negative in the, okay, so this is what i'm going to do.
03:54
I'm going to put zero right here, and then i'm going to put negative .3 right here, negative point three, because it goes to negative, well, i could probably get, yeah, i'll just, i'll keep it the same...