__Impedance of a Bridge circuit__It is usually easier to analyse a circuit once you reduce it entirely to

**Thevenin**equivalent circuit; a source connected to an impedance in series.

Impedance in series and parallel are easily reduced to a single impedance value, however a bridge circuit is not readily reduced to a single impedance, but it is not impossible to do so.

Alternative methods exist for reducing bridge networks to a single impedance to a single impedance, such as;

- conversion of sections of a bridge into
**equivalent star and delta networks** - reducing a complex network into a
**Norton equivalent**circuit.

**Kirchhoff current law**. Ultimately, the impedance is then found by the ratio of voltage applied to current drawn from the source.

Any thoughts concerning this approach.