Ohm's+Law+-+Danielle,+Anish,+Graydon

Ohm's Law
 * Title of Lab:**

Danielle Myers, Anish Sahashrabude, Graydon Yoder
 * Researchers**:

What is the relationship between the voltage across an Ohmic device and the current flowing through the device?
 * Research Question:**

Ohm's Law - The flow of electric charge is electric current. The flow of electrons passing through the wire increases as voltage increases, making us believe that an increase in one will yield an increase in another. Therefore, t he current running through a conductor is directly proportional to the voltage.
 * Research:**

 Brown, Black, Black, Gold There is a strong linear relationship between amperes and volts.
 * Hypothesis:**


 * Materials:**
 * Voltage source, ammeter, multimeter, resistor, lead wires, and pin connectors **

1.Connect the voltage source to the ammeter and the resistor. 2.Connect the wires to the volt meter. 4.Touch the two volt meter wire ends together and make sure the reading on the volt meter is 0. 5.Increase the voltage on the voltage source so that the amps increase by .02. 6.Touch the wire ends to the two sides of the resistor and record the voltage reading. 7. Repeat steps 4-6 until .20 amps is reached.
 * Procedure:**


 * Data:**
 * Current (amperes) || Voltage (volts) ||
 * .02 || .24 ||
 * .04 || .45 ||
 * .06 || .63 ||
 * .08 || .89 ||
 * .10 || .98 ||
 * .12 || 1.23 ||
 * .14 || <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">1.45 ||
 * <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">.16 || <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">1.57 ||
 * <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">.18 || <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">1.79 ||
 * <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">.20 || <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">1.90 ||

Based on the color code from our resistor, the actual resistance was 10 Ohms. The experimental resistance shown by the slope of our graph's line was 9.56 Ohms. This reveals a percent error of 4.4%. The y-intercept shows small error, being .0555 V above the actual value of 0 V.
 * Data Analysis:**

Based on the strong linear correlation of our data and a percent error of only 4.4%, we can conclude that our hypothesis (I∝V) is correct. Error could have been generated from the older version of ammeter used and the difficulty in reading it, and not including the resistance from the wires used. With an updated and more accurate ammeter and inclusion of the resistance of the wires, error could be reduced.
 * Conclusion:**