 #1
Member advised to use the formatting template for all homework help requests
I'm asking how they managed to get those formulas to describe the graph.
a few of my homework questions rely on me being able to get the correct formulas from a graph like this. So i can then find the voltage and amperes in the questions. I'm just trying to understand how
50t represents 0 < t < 1
100  50t " " 1 < t < 3
200 + 50t " " 3 < t < 4
edit: I'm supposed to take the derivatve of v (dv/dt) to get the voltage from the graph and then multiply it by the farads given to get amperes
How do these numbers make sense from the graph? I've thought until I can think no longer.
from 0 to 1, the difference is clearly 50, but why the t variable? 50*1 does equal 50.
from 1 to 3, the point 3 stops at 50, it's vertical magnitude is a negative 100, but it is written as 10050t,
from 3 to 4, the total magnitude from 0 to 4 is 200, but why is it negative and the 50t positive?
surely there is something stupidly obvious I'm missing here.
a few of my homework questions rely on me being able to get the correct formulas from a graph like this. So i can then find the voltage and amperes in the questions. I'm just trying to understand how
50t represents 0 < t < 1
100  50t " " 1 < t < 3
200 + 50t " " 3 < t < 4
edit: I'm supposed to take the derivatve of v (dv/dt) to get the voltage from the graph and then multiply it by the farads given to get amperes
How do these numbers make sense from the graph? I've thought until I can think no longer.
from 0 to 1, the difference is clearly 50, but why the t variable? 50*1 does equal 50.
from 1 to 3, the point 3 stops at 50, it's vertical magnitude is a negative 100, but it is written as 10050t,
from 3 to 4, the total magnitude from 0 to 4 is 200, but why is it negative and the 50t positive?
surely there is something stupidly obvious I'm missing here.
Attachments

87.3 KB Views: 416
Last edited: