Abstract:

The electrical circuit called the Wheatstone bridge is often used to measure unknown resistance. This is achieved by balancing the currents through two branches of the circuit, one branch of which includes the unknown component.

If we add a voltage source in each of the four branches of the circuit and we use the well-known method of meshes can draw interesting conclusions about how students in a first course in Science or Engineering develop their mental processes to build through meaningful learning, their concepts of voltages and currents in a circuit.

The circuit presented here is a generalization of the famous Wheatstone passive circuit. We can become active by adding to it four generators, one in each branch, and that the underlying physics is much more dynamic and attractive.
Also check by Cramer's method of solving systems of equations will allow us to discuss possible solutions to this circuit.

Keywords:

Electric circuits, active learning, phyiscs laboratory.