Series and Parallel Circuits

A series circuit is a circuit with only one loop.

A parallel circuit is a circuit with multiple loops.

Rules of Series Circuits

What is the rule for potential difference in a series circuit?: Your answer should include: Adds / Add
Explanation: Potential difference adds up.
What is the difference between a series and parallel circuit?: Your answer should include: One / Multiple / Loop / Loops
Explanation: Series only has one loop. Parallel has multiple/more than one loop.
What is the potential difference across the 3Ω resistor?: Your answer should include: 12V / 12