A Maxwell bridge (non-European)
A Maxwell bridge is a type of Wheatstone bridge used to measure an unknown inductance in terms of calibrated resistance and capacitance. It's a real product bridge. With reference to picture we can calculate <math>R_3</math> and <math>L_3</math>: <math>R_3 = {R_1 \cdot R_4 \over R_2 }</math>
<math>L_3 = R_1 \cdot R_4 \cdot C_2</math>


