Block+D+Group+7

Block D Group 7

1. How does the distance from a light source affect the electrical output of a pv cell?

2. If the light source is closer then the electrical output increases.

3.
 * PV cell
 * light source 100w
 * meter stick
 * multi-meter
 * aligator clips

4.
 * plug the light source in
 * clip the alligator clips to the poopsite PV cell nodes
 * clip the alligator clips to the multimeter nodes
 * hold the light source from the PV cell at 25 centimeters and record the data reading from the multimeter
 * increase the distance from the light source by 25 more centimeters and record the new data
 * increase the distance by 25 more centimeters and record the new data
 * increase the distance to 1 meter and record the new data

5. Distance VS. volts generated number || distance(cm) || volts generated || 6. graph on paper 7. When we held the light source closer the PV cell generated more electricity than when we held it farther away
 * trial
 * 1 || 25 || 5.05v ||
 * 2 || 50 || 4.31v ||
 * 3 || 75 || 3.90v ||
 * 4 || 100 || 3.70v ||

8. We could have used an adjustable lamp stand so i wouldnt have had to held the light source by hand An error in the data would be the fact that i could not hold the light source at the exact distances so the voltage readings with the multimeter were off slightly