Finding resistance in a resistor?

1 reply · 2K views · last reply
ninjadrummer8
Messages
24
Reaction score
0

Homework Statement


Left: graph of V (Volts) against I (current) with four data points at x = 1 to 4 and a red best-fit line rising to the right. Right: circuit with a variable voltage source V, a resistor R and a voltmeter V across the resistor.

Basically, this "battery" is actually a variable voltage source. The current is raised and the voltmeter measures the voltage in the resistor. What is the resistance in the region that the current goes from 1-4 Amps? (BTW, the red line is a best fit line.)


Homework Equations


R=V/I


The Attempt at a Solution


Ok, well since this is linear, the slope of this line is actually V/I, so would the slope of the line be the resistance?
 
ninjadrummer8 said:

The Attempt at a Solution


Ok, well since this is linear, the slope of this line is actually V/I, so would the slope of the line be the resistance?

Yes it would be the slope of the line.