What does mesh analysis help to do in circuit theory?

Mesh analysis is a fundamental technique in circuit theory that is used to analyze planar circuits. It is specifically designed to apply Kirchhoff's Voltage Law (KVL) around closed loops, which is the basis for deriving equations related to the voltages and currents in the components of the circuit. By establishing a mesh current for each loop in the circuit, mesh analysis allows one to form a system of equations that can be solved to find the currents in the circuit.

Using mesh analysis effectively simplifies the process of applying KVL by focusing on individual loops rather than considering all elements and nodes at once. This approach helps in systematically determining the voltage drops across components and identifying the relationships between the mesh currents, making it a powerful tool for circuit analysis. Each loop's equation is formed by summing up the voltage drops and equating them to the applied voltage, consistent with KVL. This systematic approach leverages the simplicity of linear equations in circuit analysis.

The other options provided do not accurately reflect the primary focus of mesh analysis. While it may indirectly relate to current measurement, it is not its main function. Similarly, power distribution assessment or calculations for resistive loads are not direct applications of mesh analysis but can be derived from the results obtained through KVL in the context