In "bipolar modality" the voltage is applied to the patient using a special forceps, with one tine connected to one pole of the A.C. generator and the other tine connected to the other pole of the generator.
In "bipolar modality" the voltage is applied to the patient using a pair of similarly-sized electrodes. For example, special forceps, with one tine connected to one pole of the A.C. generator and the other tine connected to the other pole of the generator.