The Maxwell bridge is a bridge that is used to determine a circuit's self-inductance.
A more sophisticated version of the Wheatstone Bridge is the Wheatstone Bridge.
The Maxwell bridge is based on the comparison principle, which states that the value of an unknown inductance may be calculated by comparing it to a standard value.
Let, L1 – unknown inductance of resistance R1.
R1 – Variable inductance of fixed resistance r1.
R2, R3, R4 – variable resistance connected in series with inductor L2.
C4 – known non-inductance resistance
For balance condition,
By separating the real and imaginary equation we get,
The above equation shows that the bridges have two variables R4 and C4 which appear in one of the two equations and hence both the equations are independent.
The circuit quality factor is expressed as,