Day 13 - Difference in Potential & Continuous Charge Distribution

Experimental lab demonstrating electric Potential

For this lab our power supply is rated at 15 volts, and the potential difference between the two pins was 15.54 Volts that we measured. As long as we know the charge, the change in voltage will always be known. If two points on the field were randomly chosen, the potential would be zero. Therefore we know that no work is required.

This data set shows the change in voltage based on the position, and the ratio for both of them when divided by one or the other. Each new position was in an increment of 1 centimeter. We wanted to know the work in order to move the given charge from certain distances:

A. 0 to 3

B. 4 to 6

C. 5 to 2

Resulting values -

Since we know that W=Q*delta(V), it is easy to calculate since we know the change in voltage going from each point based on the data table above.

THe potential versus position graph above shows that there is a directly proportional relationship between the two. This is similar to a concept learned in the previous 4A class.