ANALYSISAs the potential across the resistor increased, the current through the resistor increased. If the change in current is proportional to the voltage, the data should be in a straight line and it should go through zero. In these two examples how close is the y-intercept to zero? Is there a proportional relationship between voltage and current? If so, write the equation for each run in the form potential = constantcurrent. (Use a numerical value for the constant.)Compare the constant in each of the above equations to the resistance of each resistor.Resistance, R, is defined using R = V/I where V is the potential across a resistor, and I is the current. R is measured in ohms (), where 1 = 1 V/A. The constant you determined in each equation should be similar to the resistance of each resistor. However, resistors are manufactured such that their actual value is within a tolerance. For most resistors used in this lab, the tolerance is 5% or 10%. Check with your instructor to determine the tolerance of the resistors you are using. Calculate the range of values for each resistor. Does the constant in each equation fit within the appropriate range of values for each resistor?Do your resistors follow Ohm’s law? Base your answer on your experimental data. Current VS Voltage6y= 34.537x - 0.0335.4310.020.040.060.080.10.120.140.16-1 Current VS Voltage6y- 60.173x-0.0114.-3.210.010.020.030.040.050.060.070.080.09-1

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Answered: As the potential across the resistor…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 85PE: (a) Haw much power is dissipated in a short circuit of 240-V AC through a resistance of 0.250 ? (b)...

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ANALYSIS

As the potential across the resistor increased, the current through the resistor increased. If the change in current is proportional to the voltage, the data should be in a straight line and it should go through zero. In these two examples how close is the y-intercept to zero? Is there a proportional relationship between voltage and current? If so, write the equation for each run in the form potential = constantcurrent. (Use a numerical value for the constant.)
Compare the constant in each of the above equations to the resistance of each resistor.
Resistance, R, is defined using R = V/I where V is the potential across a resistor, and I is the current. R is measured in ohms (), where 1 = 1 V/A. The constant you determined in each equation should be similar to the resistance of each resistor. However, resistors are manufactured such that their actual value is within a tolerance. For most resistors used in this lab, the tolerance is 5% or 10%. Check with your instructor to determine the tolerance of the resistors you are using. Calculate the range of values for each resistor. Does the constant in each equation fit within the appropriate range of values for each resistor?
Do your resistors follow Ohm’s law? Base your answer on your experimental data.

Current VS Voltage
6
y= 34.537x - 0.0335.
4
3
1
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
-1

Current VS Voltage
6
y- 60.173x-0.0114.-
3.
2
1
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
-1

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