Part 10: Use of Power by Lightbulbs Investigation 25. Design a simple circuit using one lightbulb and the instructions from step 1.
Set the power source at 20 V. Use the ammeter to determine the total current in
the circuit as an indication of its use of power.
IF
What happens to the bulbs' use of power if you add a second bulb with the same
resistance in series with the first?
Remove the second lightbulb, and then design a parallel circuit using two
lightbulbs that have the same resistance. How does the use of power in the
parallel circuit compare to the use of power in the simple circuit with one
bulb?