Objective: In this bridge, a capacitance is measured with a standard variable capacitance.The connection is shown in the figure.

Circuit Diagram:

                                                               C₁= A standard capacitor.

                                                                C₂= A standard capacitor whose capacitance has to be measured.

                                                                r₁,r₂= Represanting loss of their corresponding capacitors.

                                                                 R₄,R₃= Non-inductive resistance.

                                                                 R₁,R₂= They are connected in series with C₁ and C₂ repectively.

At balance condition,

  Equatting both the real and imaginary parts and separate them,

 The balance may be obtained by variation of  resistances R₁, R₂, R₃ and R₄.

Phasor diagram:

The angles  and  are the phase angles of capacitor C₁ and C₂.The dissipation factor for corresponding capaqcitor are 

From the above equation ,

  Thereforw, if the dissipation factor of  one of the capacitors is known, the dissipation factor for the other can be determined .