There are different types of circuits.
The current in a series circuit can only flow
in one path, and it must flow through all
the circuit components.
In this series circuit, the current flows
through each of the bulbs in a sequence.
Because all the loads in the circuit share
the same current, the bulbs are the same brightness.
Adding more bulbs increases the resistance.
This causes a decrease in the current, which
results in a decrease in the brightness of
all the bulbs.
If any of the bulbs fail in a series circuit,
the current will stop flowing, and the other
bulbs will stop working.
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