Describe mesh analysis and when it is preferred over nodal analysis.

Mesh analysis uses KVL to write equations around each mesh (loop) in terms of mesh currents. The approach involves: identifying all meshes, assigning mesh currents (typically clockwise), applying KVL around each mesh, and solving for mesh currents. It is preferred when the circuit has fewer meshes than nodes, when dealing with series-connected elements, or when current values are of primary interest.