An electrical connector includes first and second conducting members that
are pivotally attached to each other. A portion of the first and second
conducting members distal to the pivotal attachment form an electrical
contact with the electrode. The first and second conducting member, when
operable connected to electric power source, provide parallel current
paths for an electric current form the power source to the electrode.
Further, the first and second conducting members are configured to
provide additional forces at the contact with the electrode in response
to magnetic field effects of the current flow Lorentz force), the
additional forces having at least a predetermine value when a value of
the electric current has a preselected value. For example, the
predetermined value of the additional forces may be determined, using
known properties of electrical contacts, so as to ensure that the contact
does not fail when the current reaches the preselected value.