1-26Figure 1-8.—Inductance bridge.The ac signal is applied to the bridge, and variable resistors R1 and R2 are adjusted for a minimumor zero deflection of the meter, indicating a condition of balance. When the bridge is balanced, thefollowing formulas may be used to find L_{x}.(NOTE: The right side of this expression is NOT inverse as it was in the capacitance bridge.)andorIn figure 1-8, for example, the values of R1, R2, and R_{s} are 20, 40, and 60 ohms, respectively. Thevalue of L_{s} is 10 millihenries. We can find the values of R_{x} and L_{x} by using their respective formulas asfollows: