Difference between revisions of "Lab 1 TF EIM"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
| − | Kirchoff's Law | + | =Kirchoff's Law= |
| − | Construct the circuit below. | + | ==Construct the circuit below.== |
| − | Enter the values of the DC voltage and Resisters that you used. | + | ==Enter the values of the DC voltage and Resisters that you used.== |
{| border="3" cellpadding="20" cellspacing="0" | {| border="3" cellpadding="20" cellspacing="0" | ||
| Line 17: | Line 17: | ||
|} | |} | ||
| − | Enter the measured and predicted quantities in the table below | + | ==Enter the measured and predicted quantities in the table below== |
| + | |||
| + | |||
| + | Use Kirchoff's laws to predict the current values and compare them to your measurements by filling in the table below. | ||
{| border="3" cellpadding="20" cellspacing="0" | {| border="3" cellpadding="20" cellspacing="0" | ||
| Line 29: | Line 32: | ||
|} | |} | ||
| + | = Internal resistance= | ||
| − | + | Measure the internal resistance of your power source by graphing the potential difference on the x-axis and the current on the y-axis for several values of the resistance <math>R_L</math> shown in the circuit below. Begin with R_L = 1k\Omega and then decrease it by a factor of 5 for each subsequent measurement. You can use a volt meter to measure the current and potential difference. | |
| − | |||
Revision as of 03:10, 22 October 2010
Kirchoff's Law
Construct the circuit below.
Enter the values of the DC voltage and Resisters that you used.
| Variable | Measured Value |
Enter the measured and predicted quantities in the table below
Use Kirchoff's laws to predict the current values and compare them to your measurements by filling in the table below.
| Variable | Measured Value | Predicted Value | % Difference |
Internal resistance
Measure the internal resistance of your power source by graphing the potential difference on the x-axis and the current on the y-axis for several values of the resistance shown in the circuit below. Begin with R_L = 1k\Omega and then decrease it by a factor of 5 for each subsequent measurement. You can use a volt meter to measure the current and potential difference.