Pre-lab Tasks:

1. Sketch the time-varying waveforms you expect to see at nodes $a$, $b$, and $c$ in figure 6.
2. Explain in your own words how your power supply works.
3. Draw the complete schematic diagrams for a power supply that uses the LM7805 to regulate the output voltage. Draw another complete schematic for the circuit that uses the Zener diode to regulate the output voltage.

4. For both circuits, plot the delivered output voltage you expect your source to supply as a function of the load resistance.
5. Draw a sketch of your breadboard layout for your power supply using the voltage regulator.