Circuit-coupling.md

@@ -29,7 +29,7 @@ on the "Run" button in the left panel.
 
 Model `R_circuit.pro` shows how to implement a circuit with discrete elements in
 a static finite element simulation. Lumped resistors, voltage- and
-current-sources are used to connecting four separate cubes with a certain
+current-sources are used to connect four separate cubes with a certain
 conductivity, where an electrokinetic finite element formulation is solved.
 
 Model `RLC_circuit` shows how to implement a circuit with discrete resistors,