Which circuit has no branches?

Which circuit has no branches?

• A. Series circuit
• B. Parallel circuit
• C. Mixed circuit
• D. Open circuit

Answer: (A)

A circuit with no branches has a single path for current to follow from the source back to return. In a series circuit, components are connected end-to-end, so there is one continuous path and the same current flows through every element. That lack of alternate routes means there are no branches. In contrast, a parallel circuit splits current at junctions into multiple paths, creating branches. A mixed circuit includes both single-path and branching sections, so it does have branches somewhere. An open circuit has a break in the path, stopping current altogether, which is a different situation from having no branches.

A circuit with no branches has a single path for current to follow from the source back to return. In a series circuit, components are connected end-to-end, so there is one continuous path and the same current flows through every element. That lack of alternate routes means there are no branches. In contrast, a parallel circuit splits current at junctions into multiple paths, creating branches. A mixed circuit includes both single-path and branching sections, so it does have branches somewhere. An open circuit has a break in the path, stopping current altogether, which is a different situation from having no branches.