Overview
The Maxwell Bridge is used to measure the self-inductance of a coil. It consists of four resistive arms (R₁, R₂, R₃, R₄) and the coil with inductance L₂. At balance, the potential difference between certain points is zero, leading to the relation:

From this, the self-inductance L₁ is calculated as:

This method provides an accurate measurement of the coil’s inductance.

Significance
The Maxwell Bridge is important for accurately measuring inductance in a laboratory setting, particularly for inductors with high precision. It is widely used in applications where accurate inductance measurements are necessary, such as in the calibration of inductors and components used in AC circuits.