#2 and #2 have to share the current flowing through the series
connection, wile #2 and #4 are able to use the full current coming
through the circuit.
Why bulbs #3 becomes brighter after bulb #2 is removed (all other
bulbs are remained in the circuit).
Since bulb #2 is removed, bulb #3 is able to use all of the current
in the series connection.
Can the lights at your home be connected as shown in Fig. 4? Why?
Yes, they can. However, feasibility of the design being implemented into
residential settings would depend on bulb/fixture specifications.
This experiment further illustrated the nature of electricity and its relations to Ohm’s law.
After seeing the characteristics of the light bulbs acting as resistors in the circuit, I was
able to visualize how the light bulbs in series acted very differently than the light bulbs in
parallel. Because we were treating the light bulbs as resistors, the various levels of
brightness allowed me to see how the series connections would reduce the current
used, while the connections in parallel would increase since there were more paths for
current. It was also very interesting observing the effects of complex circuits where both
the series and parallel connections were pulling simultaneously on the current.
Chen, De Haui.
General Physics II Lab Manual
. Dubuque, IA: Kendall Hunt, 2015. Print.
Young & Freedman. 2012.
Sears and Zemansky’s University Physics with Modern
Physics 13th Edition.
Pearson Education. San Francisco