A series circuit is defined as?

A series circuit is defined as?

• A. An electric circuit with only one path through which current can flow.
• B. An electric circuit with multiple paths through which current can flow.
• C. A circuit where current does not flow.
• D. A circuit with zero resistance

Answer: (A)

The main idea is that a series circuit has only one path for current to flow. When components are connected end-to-end in one loop, the same current passes through every component. That single path means the total resistance is the sum of the individual resistances, and if the circuit is opened at any point, the current stops everywhere. So the description that there is only one path for current to flow matches a series circuit perfectly. The other descriptions describe different situations: having multiple paths means current can split, which is a parallel circuit; no current would require an open circuit or no potential difference; zero resistance would imply an unrealistically huge current in a real circuit.

The main idea is that a series circuit has only one path for current to flow. When components are connected end-to-end in one loop, the same current passes through every component. That single path means the total resistance is the sum of the individual resistances, and if the circuit is opened at any point, the current stops everywhere. So the description that there is only one path for current to flow matches a series circuit perfectly.

The other descriptions describe different situations: having multiple paths means current can split, which is a parallel circuit; no current would require an open circuit or no potential difference; zero resistance would imply an unrealistically huge current in a real circuit.