What is the structure of electric circuits? Can a branch of a circuit contain three elements? Can there be a branch which doesn’t contain any circuit elements? Solution First electric circuit means, the circuit having elements like resistors, capacitors and inductors along with sources. Any electric circuit comprises of node, branches, and meshes. The joining point of two elements is called node. The element between two nodes is called branch. In branch only one series element is possible to connect but in parallel it can have N number of elements. No branch with out elements in electric circuits..