1. Solar cell setup

2. Lab stand, clamp
Experiment1: If you increase the brightness of light shining on a solar cell, will it fill a capacitor faster, slower, or at the same rate? (Brightness increases as the number of photons per time coming from the source).
Multimeter
Solar panel
Here are the things you need
Light
Capacitor

3. Connect the solar panel to the capacitor
Negative side indicated by stripe
Connect the solar panel to the capacitor
Red wire goes to the positive side
Wires from solar panel.
Black wire goes to the negative side

4. Set up the multimeter as shown
Connect alligator clips to other end of cable
Set up the multimeter as shown
Set to V (DC volts)
Banana cables (hanging on wall) connect as shown

5. Connect the meter to the capacitor
Black to negative
Make sure + and – sides do not touch each other
Red to positive

6. Read voltage from here. For every volt, electrons have been stored in the capacitor!
Voltage across capacitor

7. In the experiments that follow, do not charge the capacitor to more than 3 V. Otherwise, we may burn up bulbs/LEDs.

8. Experiment2: After capacitor is charged to 3 V:
If you disconnect it from the solar cell, then connect a Christmas tree light bulb across the capacitor, which do think will happen: a) the bulb will start dim, then get brighter; b) the bulb will start bright then get dimmer; c) the bulb will stay bright forever; d) the bulb will not light.

9. Experiment3: After capacitor is charged to 3 V:
If you disconnect it from the solar cell, then connect a LED across the capacitor, what do you expect to be different from the previous experiment?
Wire on flat side goes to negative